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44.4k
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
6,900 |
1609.00517
|
Seungsang Oh
|
Seungsang Oh
|
Quantum knot mosaics and the growth constant
| null |
Topology and its Applications 210 (2016) 311-316
| null | null |
math.GT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Lomonaco and Kauffman introduced a knot mosaic system to give a precise and
workable definition of a quantum knot system, the states of which are called
quantum knots. This paper is inspired by an open question about the knot mosaic
enumeration suggested by them. A knot $n$--mosaic is an $n \times n$ array of
11 mosaic tiles representing a knot or a link diagram by adjoining properly
that is called suitably connected. The total number of knot $n$--mosaics is
denoted by $D_n$ which is known to grow in a quadratic exponential rate. In
this paper, we show the existence of the knot mosaic constant $\delta = \lim_{n
\rightarrow \infty} D_n^{\ \frac{1}{n^2}}$ and prove that $$4 \leq \delta \leq
\frac{5+ \sqrt{13}}{2} \ (\approx 4.303).$$
|
[{'version': 'v1', 'created': 'Fri, 2 Sep 2016 09:26:53 GMT'}]
|
2016-09-05
|
[array(['Oh', 'Seungsang', ''], dtype=object)]
|
6,901 |
hep-ph/9412310
|
Yuji Koike
|
Y. Koike and K. Tanaka
|
Q^2-Evolution of Nucleon's Chiral-Odd Twist-3 Structure Function:
h_L(x,Q^2)
|
HUPD-9419, Latex file, 21 pages, 7 figures available on request
|
Phys.Rev.D51:6125-6138,1995
|
10.1103/PhysRevD.51.6125
| null |
hep-ph
| null |
We investigate the $Q^{2}$-evolution of the chiral-odd spin-dependent parton
distribution $h_{L}(x, Q^{2})$ relevant for the polarized Drell-Yan processes.
The results are obtained in the leading logarithmic order in the framework of
the renormalization group and the standard QCD perturbation theory. We
calculate the anomalous dimension matrix for the twist-3 operators for $h_{L}$
in the one-loop order. The operator mixing among the relevant twist-3 operators
including the operators proportional to the QCD equations of motion is treated
properly in a consistent scheme. Implications for future experiments are also
discussed.
|
[{'version': 'v1', 'created': 'Fri, 16 Dec 1994 08:28:03 GMT'}]
|
2009-09-25
|
[array(['Koike', 'Y.', ''], dtype=object)
array(['Tanaka', 'K.', ''], dtype=object)]
|
6,902 |
1703.04835
|
Wei-An Lin
|
Wei-An Lin and Jun-Cheng Chen and Rama Chellappa
|
A Proximity-Aware Hierarchical Clustering of Faces
| null | null | null | null |
cs.CV
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper, we propose an unsupervised face clustering algorithm called
"Proximity-Aware Hierarchical Clustering" (PAHC) that exploits the local
structure of deep representations. In the proposed method, a similarity measure
between deep features is computed by evaluating linear SVM margins. SVMs are
trained using nearest neighbors of sample data, and thus do not require any
external training data. Clusters are then formed by thresholding the similarity
scores. We evaluate the clustering performance using three challenging
unconstrained face datasets, including Celebrity in Frontal-Profile (CFP),
IARPA JANUS Benchmark A (IJB-A), and JANUS Challenge Set 3 (JANUS CS3)
datasets. Experimental results demonstrate that the proposed approach can
achieve significant improvements over state-of-the-art methods. Moreover, we
also show that the proposed clustering algorithm can be applied to curate a set
of large-scale and noisy training dataset while maintaining sufficient amount
of images and their variations due to nuisance factors. The face verification
performance on JANUS CS3 improves significantly by finetuning a DCNN model with
the curated MS-Celeb-1M dataset which contains over three million face images.
|
[{'version': 'v1', 'created': 'Tue, 14 Mar 2017 23:41:45 GMT'}]
|
2017-03-16
|
[array(['Lin', 'Wei-An', ''], dtype=object)
array(['Chen', 'Jun-Cheng', ''], dtype=object)
array(['Chellappa', 'Rama', ''], dtype=object)]
|
6,903 |
hep-th/0103103
|
Yang-Hui Evariste He
|
Bo Feng, Yang-Hui He and Nicolas Moeller
|
Testing the Uniqueness of the Open Bosonic String Field Theory Vacuum
|
27 pages; references added, minor typos corrected, added important
note which was pointed out by H. Hata
| null | null |
MIT-CTP-3097
|
hep-th
| null |
The operators K_n are generators of reparameterization symmetries of Witten's
cubic open string field theory. One pertinent question is whether they can be
utilised to generate deformations of the tachyon vacuum and thereby violate its
uniqueness. We use level truncation to show that these transformations on the
vacuum are in fact pure gauge transformations to a very high accuracy, thus
giving new evidence for the uniqueness of the perturbatively stable vacuum.
Equivalently, this result implies the vanishing of some discrete cohomology
classes of the BRST operator in the stable vacuum.
|
[{'version': 'v1', 'created': 'Wed, 14 Mar 2001 17:54:59 GMT'}
{'version': 'v2', 'created': 'Thu, 19 Apr 2001 00:14:48 GMT'}]
|
2007-05-23
|
[array(['Feng', 'Bo', ''], dtype=object)
array(['He', 'Yang-Hui', ''], dtype=object)
array(['Moeller', 'Nicolas', ''], dtype=object)]
|
6,904 |
cond-mat/9402043
| null |
O. Golinelli, Th. Jolicoeur and R. Lacaze
|
Finite-lattice extrapolations for a Haldane gap antiferromagnet
|
14 pages, RevTeX 3.0, followed by 2 PostScript figures, T94-007
|
Phys. Rev. B 50, 3037-3044 (1994)
|
10.1103/PhysRevB.50.3037
| null |
cond-mat
| null |
We present results of exact diagonalizations of the isotropic
antiferromagnetic S=1 Heisenberg chain by the Lanczos method, for finite rings
of up to N=22 sites. The Haldane gap G(N) and the ground state energy per site
e(N) converge, with increasing N, faster than a power law. By VBS and Shanks
transformations, the extrapolated values are G=0.41049(2) and e=-1.401485(2).
The spin-spin correlation function is well fit by exp(-r/xi)/sqrt(r) with
xi=6.2.
|
[{'version': 'v1', 'created': 'Wed, 9 Feb 1994 12:19:00 GMT'}]
|
2009-10-22
|
[array(['Golinelli', 'O.', ''], dtype=object)
array(['Jolicoeur', 'Th.', ''], dtype=object)
array(['Lacaze', 'R.', ''], dtype=object)]
|
6,905 |
1104.5020
|
Emma Rigby
|
E. E. Rigby, P. N. Best, M. H. Brookes, J. A. Peacock, J. S. Dunlop,
H. J. A. R\"ottgering, J. V. Wall, L. Ker
|
The luminosity-dependent high-redshift turnover in the steep spectrum
radio luminosity function: clear evidence for downsizing in the radio-AGN
population
|
16 pages with 13 additional pages of appendices; MNRAS accepted;
Minor changes to correct typos & address referee's comments, results are
unchanged
| null |
10.1111/j.1365-2966.2011.19167.x
| null |
astro-ph.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
This paper presents a new grid-based method for investigating the evolution
of the steep-spectrum radio luminosity function, with the aim of quantifying
the high-redshift cut-off suggested by previous work. To achieve this, the
Combined EIS-NVSS Survey of Radio Sources (CENSORS) has been developed; this is
a 1.4 GHz radio survey, containing 135 sources complete to a flux density of
7.2 mJy, selected from the NRAO VLA Sky Survey (NVSS) over 6 deg^2 of the ESO
Imaging Survey (EIS) Patch D. The sample is currently 73% spectroscopically
complete, with the remaining redshifts estimated via the K-z or I-z
magnitude-redshift relation. CENSORS is combined with additional radio data
from the Parkes All-Sky, Parkes Selected Regions, Hercules and VLA COSMOS
samples to provide comprehensive coverage of the radio power vs. redshift
plane. The redshift distributions of these samples, together with radio source
count determinations, and measurements of the local luminosity function,
provide the input to the fitting process. The modelling reveals clear declines,
at > 3sigma significance, in comoving density at z > 0.7 for lower luminosity
sources (log P = 25-26); these turnovers are still present at log P > 27, but
move to z > 3, suggesting a luminosity-dependent evolution of the redshift
turnover, similar to the `cosmic downsizing' seen for other AGN populations.
These results are shown to be robust to the estimated redshift errors and to
increases in the spectral index for the highest redshift sources. Analytic fits
to the best-fitting steep spectrum grid are provided so that the results
presented here can be easily accessed by the reader, as well as allowing
plausible extrapolations outside of the regions covered by the input datasets
|
[{'version': 'v1', 'created': 'Tue, 26 Apr 2011 20:00:04 GMT'}
{'version': 'v2', 'created': 'Mon, 6 Jun 2011 20:00:13 GMT'}]
|
2015-05-28
|
[array(['Rigby', 'E. E.', ''], dtype=object)
array(['Best', 'P. N.', ''], dtype=object)
array(['Brookes', 'M. H.', ''], dtype=object)
array(['Peacock', 'J. A.', ''], dtype=object)
array(['Dunlop', 'J. S.', ''], dtype=object)
array(['Röttgering', 'H. J. A.', ''], dtype=object)
array(['Wall', 'J. V.', ''], dtype=object)
array(['Ker', 'L.', ''], dtype=object)]
|
6,906 |
1810.13197
|
Valentin Vielzeuf
|
Valentin Vielzeuf, Corentin Kervadec, St\'ephane Pateux, Fr\'ed\'eric
Jurie
|
The Many Moods of Emotion
| null | null | null | null |
cs.NE cs.AI cs.CV
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
This paper presents a novel approach to the facial expression generation
problem. Building upon the assumption of the psychological community that
emotion is intrinsically continuous, we first design our own continuous emotion
representation with a 3-dimensional latent space issued from a neural network
trained on discrete emotion classification. The so-obtained representation can
be used to annotate large in the wild datasets and later used to trained a
Generative Adversarial Network. We first show that our model is able to map
back to discrete emotion classes with a objectively and subjectively better
quality of the images than usual discrete approaches. But also that we are able
to pave the larger space of possible facial expressions, generating the many
moods of emotion. Moreover, two axis in this space may be found to generate
similar expression changes as in traditional continuous representations such as
arousal-valence. Finally we show from visual interpretation, that the third
remaining dimension is highly related to the well-known dominance dimension
from psychology.
|
[{'version': 'v1', 'created': 'Wed, 31 Oct 2018 10:24:08 GMT'}]
|
2018-11-01
|
[array(['Vielzeuf', 'Valentin', ''], dtype=object)
array(['Kervadec', 'Corentin', ''], dtype=object)
array(['Pateux', 'Stéphane', ''], dtype=object)
array(['Jurie', 'Frédéric', ''], dtype=object)]
|
6,907 |
1508.07078
|
Koji Ichikawa
|
Takeshi Fukuyama, Koji Ichikawa and Yukihiro Mimura
|
Revisiting fermion mass and mixing fits in the minimal SUSY $SO(10)$ GUT
|
This is the version to be published in Phys.Rev.D. The old subsection
of proton decay is discussed in a separate form, arXiv:1609.08640
|
Phys. Rev. D 94, 075018 (2016)
|
10.1103/PhysRevD.94.075018
|
IPMU15-0141
|
hep-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Supersymmetric $SO(10)$ grand unified models with renormalizable Yukawa
couplings involving only ${\bf 10}$ and $\overline{\bf 126}$ Higgs fields have
been shown to realize the fermion masses and mixings economically. In previous
works, the sum rule of the fermion mass matrices are given by inputting the
quark matrices, and the neutrino mixings are predicted in this framework. Now
the three neutrino mixings have been measured, and in this paper, we give the
sum rule by inputting the lepton mass matrices, which makes clear certain
features of the solution, especially if the vacuum expectation values of ${\bf
126}+ \overline{\bf126}$ ($v_R$) are large and the right-handed neutrinos are
heavy. We perform the $\chi^2$ analyses to fit the fermion masses and mixings
using the sum rule. In previous works, the best fit appears at $v_R \sim
10^{13}$ GeV, and the fit at the large $v_R$ scale ($\sim 10^{16}$ GeV) has
been less investigated. Our expression of the sum rule has a benefit to
understand the flavor structure in the large $v_R$ solution. Using the fit
results, we perform the calculation of the $\mu \to e\gamma$ process and the
electric dipole moment of electron, and the importance of $v_R$ dependence
emerges in low energy phenomena. We also show the prediction of the CP phase in
the neutrino oscillations, which can be tested in the near future.
|
[{'version': 'v1', 'created': 'Fri, 28 Aug 2015 02:54:23 GMT'}
{'version': 'v2', 'created': 'Tue, 11 Oct 2016 11:05:42 GMT'}]
|
2016-11-02
|
[array(['Fukuyama', 'Takeshi', ''], dtype=object)
array(['Ichikawa', 'Koji', ''], dtype=object)
array(['Mimura', 'Yukihiro', ''], dtype=object)]
|
6,908 |
1712.03597
|
Graeme Milton
|
Graeme W. Milton and Daniel Onofrei
|
Exact relations for Green's functions in linear PDE and boundary field
equalities: a generalization of conservation laws
|
43 Pages, 3 figures
| null | null | null |
math.AP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Many physics problems have $J(x)=L(x)E(x)+h(x)$, source $h(x)$, fields
$E$,$J$ satisfying differential constraints, symbolized by $E\in\cal
E$,$J\in\cal J$ where $\cal E$,$\cal J$ are orthogonal spaces. If $L(x)$ takes
values in certain nonlinear manifolds $\cal M$, and coercivity, boundedness
hold, then the Green's function satisfies exact identities. We also link
Green's functions of different problems. The analysis, based on the theory of
exact relations for composites, does not assume microscale variations in
$L(x)$, and allows for other equations, such as for waves in lossy media. For
bodies $\Omega$, in which $L(x)\in{\cal M}$, the Dirichlet-to-Neumann map
satisfies boundary field equalities. These generalize the notion of
conservation laws: the constraints on the fields inside $\Omega$ give
identities satisfied by the boundary fields, and provide extra constraints on
the interior fields. A consequence is this: if a matrix valued field $Q(x)$
with $\nabla\cdot Q=0$ takes values in a set $\cal B$ (independent of $x$) that
lies on a nonlinear manifold, we find conditions on the manifold, and on $\cal
B$, that with appropriate conditions on the boundary fluxes $q(x)=n(x)\cdot
Q(x)$ (where $n(x)$ is the outwards normal to $\partial\Omega$) force $Q(x)$
within $\Omega$ to take values in a subspace $\cal D$. This forces $q(x)$ to
take values in $n(x)\cdot\cal D$. We find there are additional divergence free
fields inside $\Omega$ that in turn generate additional boundary field
equalities. There exist partial Null-Lagrangians, functionals $F(w,\nabla w)$
of a vector potential $w$ and its gradient, that act as null-Lagrangians when
$\nabla w$ is constrained for $x\in\Omega$ to take values in certain sets $\cal
A$, of appropriate non-linear manifolds, and when $w$ satisfies appropriate
boundary conditions. The extension to certain non-linear minimization problems
is also sketched.
|
[{'version': 'v1', 'created': 'Sun, 10 Dec 2017 22:05:47 GMT'}
{'version': 'v2', 'created': 'Thu, 15 Feb 2018 15:16:59 GMT'}
{'version': 'v3', 'created': 'Thu, 22 Feb 2018 00:26:35 GMT'}
{'version': 'v4', 'created': 'Sat, 3 Mar 2018 22:58:26 GMT'}
{'version': 'v5', 'created': 'Mon, 18 Jun 2018 23:31:58 GMT'}
{'version': 'v6', 'created': 'Thu, 15 Nov 2018 18:42:50 GMT'}]
|
2018-11-16
|
[array(['Milton', 'Graeme W.', ''], dtype=object)
array(['Onofrei', 'Daniel', ''], dtype=object)]
|
6,909 |
hep-ph/0312230
|
Nicholas Kersting
|
Nick Kersting and Yong-Liang Ma
|
Can a Nonsymmetric Metric mimic NCQFT in $e^+e^- \to \gamma \gamma$ ?
|
15 pages, 3 figures. Expanded discussion of Seiberg-Witten map
included
|
Eur.Phys.J. C38 (2004) 379-388
|
10.1140/epjc/s2004-02043-8
|
TUHEP-TH-03145
|
hep-ph
| null |
In the nonsymmetric gravitational theory (NGT) the space-time metric
$g_{\mu\nu}$ departs from the flat-space Minkowski form $\eta_{\mu\nu}$ such
that it is no longer symmetric, $i.e.$ $g_{\mu\nu} \ne g_{\nu\mu}$. We find
that in the most conservative such scenario coupled to quantum field theory,
which we call Minimally Nonsymmetric Quantum Field Theory (MNQFT), there are
experimentally measurable consequences similar to those from noncommutative
quantum field theory (NCQFT). This can be expected from the Seiberg-Witten map
which has recently been interpreted as equating gauge theories on
noncommutative spacetimes with those in a field dependent gravitational
background. In particular, in scattering processes such as the pair
annihilation $e^+e^- \to \gamma\gamma$, both theories make the same striking
prediction that the azimuthal cross section oscillates in $\phi$. However the
predicted number of oscillations differs in the two theories: MNQFT predicts
between one and four, whereas NCQFT has no such restriction.
|
[{'version': 'v1', 'created': 'Wed, 17 Dec 2003 02:17:09 GMT'}
{'version': 'v2', 'created': 'Mon, 8 Mar 2004 16:30:08 GMT'}
{'version': 'v3', 'created': 'Mon, 24 Jan 2005 08:01:02 GMT'}]
|
2009-11-10
|
[array(['Kersting', 'Nick', ''], dtype=object)
array(['Ma', 'Yong-Liang', ''], dtype=object)]
|
6,910 |
hep-lat/0103022
|
Rainer Pullirsch
|
Bernd A. Berg, Urs M. Heller, Harald Markum, Rainer Pullirsch,
Wolfgang Sakuler
|
Exact Zero-Modes of the Compact QED Dirac Operator
|
10 pages, 4 figures, minor changes (typos corrected, table updated,
reference added)
|
Phys.Lett. B514 (2001) 97-102
|
10.1016/S0370-2693(01)00767-5
| null |
hep-lat
| null |
We calculate the low-lying eigenmodes of the Neuberger overlap-Dirac operator
for $4d$ compact lattice QED in the quenched approximation. In the strong
coupling phase we find exact zero-modes, quite similar as in non-Abelian
lattice QCD. Subsequently we make an attempt to identify responsible
topological excitations of the U(1) lattice gauge theory.
|
[{'version': 'v1', 'created': 'Tue, 20 Mar 2001 09:13:44 GMT'}
{'version': 'v2', 'created': 'Tue, 26 Jun 2001 14:49:46 GMT'}]
|
2009-11-07
|
[array(['Berg', 'Bernd A.', ''], dtype=object)
array(['Heller', 'Urs M.', ''], dtype=object)
array(['Markum', 'Harald', ''], dtype=object)
array(['Pullirsch', 'Rainer', ''], dtype=object)
array(['Sakuler', 'Wolfgang', ''], dtype=object)]
|
6,911 |
2212.09140
|
Songlin Yang
|
Songlin Yang, Roger P. Levy, Yoon Kim
|
Unsupervised Discontinuous Constituency Parsing with Mildly
Context-Sensitive Grammars
|
ACL 2023
| null | null | null |
cs.CL
|
http://creativecommons.org/licenses/by/4.0/
|
We study grammar induction with mildly context-sensitive grammars for
unsupervised discontinuous parsing. Using the probabilistic linear context-free
rewriting system (LCFRS) formalism, our approach fixes the rule structure in
advance and focuses on parameter learning with maximum likelihood. To reduce
the computational complexity of both parsing and parameter estimation, we
restrict the grammar formalism to LCFRS-2 (i.e., binary LCFRS with fan-out two)
and further discard rules that require O(n^6) time to parse, reducing inference
to O(n^5). We find that using a large number of nonterminals is beneficial and
thus make use of tensor decomposition-based rank-space dynamic programming with
an embedding-based parameterization of rule probabilities to scale up the
number of nonterminals. Experiments on German and Dutch show that our approach
is able to induce linguistically meaningful trees with continuous and
discontinuous structures
|
[{'version': 'v1', 'created': 'Sun, 18 Dec 2022 18:10:45 GMT'}
{'version': 'v2', 'created': 'Fri, 9 Jun 2023 15:42:50 GMT'}]
|
2023-06-12
|
[array(['Yang', 'Songlin', ''], dtype=object)
array(['Levy', 'Roger P.', ''], dtype=object)
array(['Kim', 'Yoon', ''], dtype=object)]
|
6,912 |
2001.10094
|
Bharath K P
|
Bharath K P, Sylash K, Pravina K, Rajesh Kumar M
|
OMAP-L138 LCDK Development Kit
| null | null | null | null |
eess.AS cs.SD
|
http://creativecommons.org/publicdomain/zero/1.0/
|
Low cost and low power consumption processor play a vital role in the field
of Digital Signal Processing (DSP). The OMAP-L138 development kit which is low
cost, low power consumption, ease and speed, with a wide variety of
applications includes Digital signal processing, Image processing and video
processing. This paper represents the basic introduction to OMAP-L138 processor
and quick procedural steps for real time and non-real time implementations with
a set of programs. The real time experiments are based on audio in the
applications of audio loopback, delay and echo. Whereas the non-real time
experiments are generation of a sine wave, low pass and high pass filter.
|
[{'version': 'v1', 'created': 'Mon, 13 Jan 2020 13:09:48 GMT'}]
|
2020-01-29
|
[array(['P', 'Bharath K', ''], dtype=object)
array(['K', 'Sylash', ''], dtype=object)
array(['K', 'Pravina', ''], dtype=object)
array(['M', 'Rajesh Kumar', ''], dtype=object)]
|
6,913 |
2201.10233
|
Balthazar Charles
|
Balthazar Charles
|
A description of the minimal elements of Shi regions in classical Weyl
Groups
|
12 pages, 3 figures, 4 tables
| null | null | null |
math.CO math.GR
|
http://creativecommons.org/licenses/by/4.0/
|
In this extended abstract, we show how a bijection between parking functions
and regions of the Shi arrangement from [Athanasiadis, Linusson '99] (in type
$A_n$) and [Armstrong, Reiner, Rhoades '15] (in type $B_n, C_n, D_n$) allows
for the computation of the minimal elements of the Shi regions. This gives a
combinatorial interpretation of these minimal elements: they can be seen as
counting non-crossing arcs in non-nesting arc diagrams.
|
[{'version': 'v1', 'created': 'Tue, 25 Jan 2022 11:02:33 GMT'}]
|
2022-01-26
|
[array(['Charles', 'Balthazar', ''], dtype=object)]
|
6,914 |
2211.11524
|
Alex Shtoff
|
Yohay Kaplan, Yair Koren, Alex Shtoff, Tomer Shadi, Oren Somekh
|
Conversion-Based Dynamic-Creative-Optimization in Native Advertising
|
Accepted to IEEE Big Data 2022 conference
| null | null | null |
cs.IR cs.LG
|
http://creativecommons.org/licenses/by/4.0/
|
Yahoo Gemini native advertising marketplace serves billions of impressions
daily, to hundreds millions of unique users, and reaches a yearly revenue of
many hundreds of millions USDs. Powering Gemini native models for predicting
advertise (ad) event probabilities, such as conversions and clicks, is OFFSET -
a feature enhanced collaborative-filtering (CF) based event prediction
algorithm. The predicted probabilities are then used in Gemini native auctions
to determine which ads to present for every serving event (impression). Dynamic
creative optimization (DCO) is a recent Gemini native product that was launched
two years ago and is increasingly gaining more attention from advertisers. The
DCO product enables advertisers to issue several assets per each native ad
attribute, creating multiple combinations for each DCO ad. Since different
combinations may appeal to different crowds, it may be beneficial to present
certain combinations more frequently than others to maximize revenue while
keeping advertisers and users satisfied. The initial DCO offer was to optimize
click-through rates (CTR), however as the marketplace shifts more towards
conversion based campaigns, advertisers also ask for a {conversion based
solution. To accommodate this request, we present a post-auction solution,
where DCO ads combinations are favored according to their predicted conversion
rate (CVR). The predictions are provided by an auxiliary OFFSET based
combination CVR prediction model, and used to generate the combination
distributions for DCO ad rendering during serving time. An online evaluation of
this explore-exploit solution, via online bucket A/B testing, serving Gemini
native DCO traffic, showed a 53.5% CVR lift, when compared to a control bucket
serving all combinations uniformly at random.
|
[{'version': 'v1', 'created': 'Sun, 13 Nov 2022 13:13:00 GMT'}]
|
2022-11-22
|
[array(['Kaplan', 'Yohay', ''], dtype=object)
array(['Koren', 'Yair', ''], dtype=object)
array(['Shtoff', 'Alex', ''], dtype=object)
array(['Shadi', 'Tomer', ''], dtype=object)
array(['Somekh', 'Oren', ''], dtype=object)]
|
6,915 |
1110.0289
|
Gerald Kembellec
|
G\'erald Kembellec
|
Repr\'esentation de donn\'ees et m\'etadonn\'ees dans une biblioth\`eque
virtuelle pour une ad\'equation avec l'usager et les outils de glanage ou
moissonnage scientifique
| null | null | null | null |
cs.IR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The vehicles for official knowledge, as well as university libraries, suffer
from an increasingly visible lack of interest. This is due to the advent of
fully digital practices. By studying the psychological and cognitive models in
information retrieval initiated in the 1980s, it is possible to use these
theories and apply them practically to the Information Retrieval System, taking
into account the requirements of virtual libraries. New metadata standards
along with modern tools that help managing references should help automating
the process of scientific research. We offer a practical implementation of the
given theories to test them when they are applied to the information retrieval
in computer sciences. This case under study will highlight good practices in
gleaning and harvesting scientific literature.
|
[{'version': 'v1', 'created': 'Mon, 3 Oct 2011 08:07:11 GMT'}]
|
2011-10-04
|
[array(['Kembellec', 'Gérald', ''], dtype=object)]
|
6,916 |
2012.14792
|
Thomas Amestoy
|
Thomas Amestoy (IETR), Wassim Hamidouche (IETR), Cyril Bergeron,
Daniel Menard (IETR)
|
Quality-Driven Dynamic VVC Frame Partitioning for Efficient Parallel
Processing
| null |
27th IEEE International Conference on Image Processing (ICIP
2020), Oct 2020, Abu Dhabi, United Arab Emirates. pp.3129-3133
|
10.1109/ICIP40778.2020.9190928
| null |
cs.DC eess.IV
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
VVC is the next generation video coding standard, offering coding capability
beyond HEVC standard. The high computational complexity of the latest video
coding standards requires high-level parallelism techniques, in order to
achieve real-time and low latency encoding and decoding. HEVC and VVC include
tile grid partitioning that allows to process simultaneously rectangular
regions of a frame with independent threads. The tile grid may be further
partitioned into a horizontal sub-grid of Rectangular Slices (RSs), increasing
the partitioning flexibility. The dynamic Tile and Rectangular Slice (TRS)
partitioning solution proposed in this paper benefits from this flexibility.
The TRS partitioning is carried-out at the frame level, taking into account
both spatial texture of the content and encoding times of previously encoded
frames. The proposed solution searches the best partitioning configuration that
minimizes the trade-off between multi-thread encoding time and encoding quality
loss. Experiments prove that the proposed solution, compared to uniform TRS
partitioning, significantly decreases multi-thread encoding time, with slightly
better encoding quality.
|
[{'version': 'v1', 'created': 'Tue, 29 Dec 2020 15:07:04 GMT'}]
|
2021-01-01
|
[array(['Amestoy', 'Thomas', '', 'IETR'], dtype=object)
array(['Hamidouche', 'Wassim', '', 'IETR'], dtype=object)
array(['Bergeron', 'Cyril', '', 'IETR'], dtype=object)
array(['Menard', 'Daniel', '', 'IETR'], dtype=object)]
|
6,917 |
2306.09071
|
Niels Ligterink
|
N.F.W. Ligterink and M. Minissale
|
An overview of desorption parameters of Volatile and Complex Organic
Molecules: A systematic dig on experimental literature
|
Accepted for Astronomy and Astrophysics
| null | null | null |
astro-ph.GA astro-ph.SR
|
http://creativecommons.org/licenses/by/4.0/
|
Many molecules observed in the interstellar medium are thought to result from
thermal desorption of ices. Parameters such as desorption energy and
pre-exponential frequency factor are essential to describe the desorption of
molecules. Experimental determinations of these parameters are missing for many
molecules, including those found in the interstellar medium. The objective of
this work is to expand the number of molecules for which desorption parameters
are available, by collecting and re-analysing experimental temperature
programmed desorption data that are present in the literature. Transition State
Theory (TST) is used in combination with the Redhead equation to determine
desorption parameters. Experimental data and molecular constants (e.g., mass,
moment of inertia) are collected and given as input. Using the Redhead-TST
method, the desorption parameters for 133 molecules have been determined. The
Redhead-TST method is found to provide reliable results that agree well with
desorption parameters determined with more rigorous experimental methods. The
importance of using accurately determined pre-exponential frequency factors to
simulate desorption profiles is emphasised. The large amount of data allows to
look for trends, the most important is the relationship log$_{10}$($\nu$) =
2.65ln($m$) + 8.07, where $\nu$ is the pre-exponential frequency factor and $m$
the mass of the molecule. The data collected in this work allow to model the
thermal desorption of molecules and help understand changes in chemical and
elemental composition of interstellar environments.
|
[{'version': 'v1', 'created': 'Thu, 15 Jun 2023 12:01:09 GMT'}]
|
2023-06-16
|
[array(['Ligterink', 'N. F. W.', ''], dtype=object)
array(['Minissale', 'M.', ''], dtype=object)]
|
6,918 |
0806.4817
|
Massimo Tessarotto
|
M. Tessarotto, M. Ellero, N. Aslan, M. Mond and P. Nicolini
|
Exact pressure evolution equation for incompressible fluids
|
Contributed paper at RGD26 (Kyoto, Japan, July 2008)
|
AIP Conf.Proc.1084:224-229,2009
|
10.1063/1.3076477
| null |
physics.flu-dyn physics.class-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
An important aspect of computational fluid dynamics is related to the
determination of the fluid pressure in isothermal incompressible fluids. In
particular this concerns the construction of an exact evolution equation for
the fluid pressure which replaces the Poisson equation and yields an algorithm
which is a Poisson solver, i.e., it permits to time-advance exactly the same
fluid pressure \textit{without solving the Poisson equation}% . In fact, the
incompressible Navier-Stokes equations represent a mixture of hyperbolic and
elliptic pde's, which are extremely hard to study both analytically and
numerically. In this paper we intend to show that an exact solution to this
problem can be achieved adopting the approach based on inverse kinetic theory
(IKT) recently developed for incompressible fluids by Ellero and Tessarotto
(2004-2007). In particular we intend to prove that the evolution of the fluid
fields can be achieved by means of a suitable dynamical system, to be
identified with the so-called Navier-Stokes (N-S) dynamical system. As a
consequence it is found that the fluid pressure obeys a well-defined evolution
equation. The result appears relevant for the construction of Lagrangian
approaches to fluid dynamics.
|
[{'version': 'v1', 'created': 'Mon, 30 Jun 2008 07:53:42 GMT'}]
|
2009-01-19
|
[array(['Tessarotto', 'M.', ''], dtype=object)
array(['Ellero', 'M.', ''], dtype=object)
array(['Aslan', 'N.', ''], dtype=object)
array(['Mond', 'M.', ''], dtype=object)
array(['Nicolini', 'P.', ''], dtype=object)]
|
6,919 |
1710.06486
|
Felix Barber
|
Felix Barber, Po-Yi Ho, Andrew W. Murray, Ariel Amir
|
Details Matter: noise and model structure set the relationship between
cell size and cell cycle timing
|
24 pages, 6 figures
|
Frontiers in Cell and Developmental Biology, 2017, vol. 5, pp. 92
|
10.3389/fcell.2017.00092
| null |
q-bio.MN q-bio.CB
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Organisms across all domains of life regulate the size of their cells.
However, the means by which this is done is poorly understood. We study two
abstracted "molecular" models for size regulation: inhibitor dilution and
initiator accumulation. We apply the models to two settings: bacteria like
Escherichia coli, that grow fully before they set a division plane and divide
into two equally sized cells, and cells that form a bud early in the cell
division cycle, confine new growth to that bud, and divide at the connection
between that bud and the mother cell, like the budding yeast Saccharomyces
cerevisiae. In budding cells, delaying cell division until buds reach the same
size as their mother leads to very weak size control, with average cell size
and standard deviation of cell size increasing over time and saturating up to
100-fold higher than those values for cells that divide when the bud is still
substantially smaller than its mother. In budding yeast, both inhibitor
dilution or initiator accumulation models are consistent with the observation
that the daughters of diploid cells add a constant volume before they divide.
This adder behavior has also been observed in bacteria. We find that in
bacteria an inhibitor dilution model produces adder correlations that are not
robust to noise in the timing of DNA replication initiation or in the timing
from initiation of DNA replication to cell division (the C + D period). In
contrast, in bacteria an initiator accumulation model yields robust adder
correlations in the regime where noise in the timing of DNA replication
initiation is much greater than noise in the C + D period, as reported
previously [1]. In bacteria, division into two equally sized cells does not
broaden the size distribution.
|
[{'version': 'v1', 'created': 'Tue, 17 Oct 2017 20:01:57 GMT'}
{'version': 'v2', 'created': 'Mon, 30 Oct 2017 18:53:04 GMT'}]
|
2017-11-07
|
[array(['Barber', 'Felix', ''], dtype=object)
array(['Ho', 'Po-Yi', ''], dtype=object)
array(['Murray', 'Andrew W.', ''], dtype=object)
array(['Amir', 'Ariel', ''], dtype=object)]
|
6,920 |
1501.03989
|
Mario G. Santos
|
Mario G. Santos, Philip Bull, David Alonso, Stefano Camera, Pedro G.
Ferreira, Gianni Bernardi, Roy Maartens, Matteo Viel, Francisco
Villaescusa-Navarro, Filipe B. Abdalla, Matt Jarvis, R. Benton Metcalf, A.
Pourtsidou, Laura Wolz
|
Cosmology with a SKA HI intensity mapping survey
|
This article is part of the 'SKA Cosmology Chapter, Advancing
Astrophysics with the SKA (AASKA14), Conference, Giardini Naxos (Italy), June
9th-13th 2014'
|
PoS AASKA14 (2015) 019
| null | null |
astro-ph.CO astro-ph.IM gr-qc
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
HI intensity mapping (IM) is a novel technique capable of mapping the
large-scale structure of the Universe in three dimensions and delivering
exquisite constraints on cosmology, by using HI as a biased tracer of the dark
matter density field. This is achieved by measuring the intensity of the
redshifted 21cm line over the sky in a range of redshifts without the
requirement to resolve individual galaxies. In this chapter, we investigate the
potential of SKA1 to deliver HI intensity maps over a broad range of
frequencies and a substantial fraction of the sky. By pinning down the baryon
acoustic oscillation and redshift space distortion features in the matter power
spectrum -- thus determining the expansion and growth history of the Universe
-- these surveys can provide powerful tests of dark energy models and
modifications to General Relativity. They can also be used to probe physics on
extremely large scales, where precise measurements of spatial curvature and
primordial non-Gaussianity can be used to test inflation; on small scales, by
measuring the sum of neutrino masses; and at high redshifts where non-standard
evolution models can be probed. We discuss the impact of foregrounds as well as
various instrumental and survey design parameters on the achievable
constraints. In particular we analyse the feasibility of using the SKA1
autocorrelations to probe the large-scale signal.
|
[{'version': 'v1', 'created': 'Fri, 16 Jan 2015 14:33:23 GMT'}]
|
2016-10-24
|
[array(['Santos', 'Mario G.', ''], dtype=object)
array(['Bull', 'Philip', ''], dtype=object)
array(['Alonso', 'David', ''], dtype=object)
array(['Camera', 'Stefano', ''], dtype=object)
array(['Ferreira', 'Pedro G.', ''], dtype=object)
array(['Bernardi', 'Gianni', ''], dtype=object)
array(['Maartens', 'Roy', ''], dtype=object)
array(['Viel', 'Matteo', ''], dtype=object)
array(['Villaescusa-Navarro', 'Francisco', ''], dtype=object)
array(['Abdalla', 'Filipe B.', ''], dtype=object)
array(['Jarvis', 'Matt', ''], dtype=object)
array(['Metcalf', 'R. Benton', ''], dtype=object)
array(['Pourtsidou', 'A.', ''], dtype=object)
array(['Wolz', 'Laura', ''], dtype=object)]
|
6,921 |
cond-mat/0104515
|
Leonid Didukh
|
L. Didukh and O.Kramar (Ternopil State Technical University, Ukraine)
|
On metallic ferromagnetism of a generalized Hubbard model with
correlated hopping
|
12 pages, 7 eps figures
| null | null | null |
cond-mat.str-el
| null |
In the paper a possibility of metallic ferromagnetic state realization in a
generalized Hubbard model with more complete accounting of electron-electron
interactions, in particular, the correlated hopping and exchange interaction
integrals is investigated. Recently obtained by means of mean-field
approximation single electron energy spectrum is used for the description of
finite temperature properties of the system. In the paper the expression for
the critical temperature of ferromagnet-paramagnet transition is found, the
behaviour of temperature dependencies of magnetization and paramagnetic
susceptibility is analyzed. Taking into account the correlated hopping allows
to explain some peculiarity of ferromagnetic behaviour of transition metals,
their alloys and compounds.
|
[{'version': 'v1', 'created': 'Thu, 26 Apr 2001 14:32:45 GMT'}]
|
2007-05-23
|
[array(['Didukh', 'L.', '', 'Ternopil State Technical University, Ukraine'],
dtype=object)
array(['Kramar', 'O.', '', 'Ternopil State Technical University, Ukraine'],
dtype=object) ]
|
6,922 |
2101.06917
|
Xiaoxiao Wu
|
Sissi Xiaoxiao Wu, Gangqiang Li, Shengli Zhang, and Xiaohui Lin
|
Detection of Insider Attacks in Distributed Projected Subgradient
Algorithms
| null | null | null | null |
cs.LG cs.IT math.IT
|
http://creativecommons.org/licenses/by/4.0/
|
The gossip-based distributed algorithms are widely used to solve
decentralized optimization problems in various multi-agent applications, while
they are generally vulnerable to data injection attacks by internal malicious
agents as each agent locally estimates its decent direction without an
authorized supervision. In this work, we explore the application of artificial
intelligence (AI) technologies to detect internal attacks. We show that a
general neural network is particularly suitable for detecting and localizing
the malicious agents, as they can effectively explore nonlinear relationship
underlying the collected data. Moreover, we propose to adopt one of the
state-of-art approaches in federated learning, i.e., a collaborative
peer-to-peer machine learning protocol, to facilitate training our neural
network models by gossip exchanges. This advanced approach is expected to make
our model more robust to challenges with insufficient training data, or
mismatched test data. In our simulations, a least-squared problem is considered
to verify the feasibility and effectiveness of AI-based methods. Simulation
results demonstrate that the proposed AI-based methods are beneficial to
improve performance of detecting and localizing malicious agents over
score-based methods, and the peer-to-peer neural network model is indeed robust
to target issues.
|
[{'version': 'v1', 'created': 'Mon, 18 Jan 2021 08:01:06 GMT'}]
|
2021-01-19
|
[array(['Wu', 'Sissi Xiaoxiao', ''], dtype=object)
array(['Li', 'Gangqiang', ''], dtype=object)
array(['Zhang', 'Shengli', ''], dtype=object)
array(['Lin', 'Xiaohui', ''], dtype=object)]
|
6,923 |
cs/9911004
|
Wolfgang Slany
|
Wolfgang Slany
|
Graph Ramsey games
|
47 pages; To actually play small but nontrivial game instances, go to
http://www.dbai.tuwien.ac.at/proj/ramsey/
| null | null |
DBAI-TR-99-34
|
cs.CC cs.DM math.CO
| null |
We consider combinatorial avoidance and achievement games based on graph
Ramsey theory: The players take turns in coloring still uncolored edges of a
graph G, each player being assigned a distinct color, choosing one edge per
move. In avoidance games, completing a monochromatic subgraph isomorphic to
another graph A leads to immediate defeat or is forbidden and the first player
that cannot move loses. In the avoidance+ variants, both players are free to
choose more than one edge per move. In achievement games, the first player that
completes a monochromatic subgraph isomorphic to A wins. Erdos & Selfridge
(1973) were the first to identify some tractable subcases of these games,
followed by a large number of further studies. We complete these investigations
by settling the complexity of all unrestricted cases: We prove that general
graph Ramsey avoidance, avoidance+, and achievement games and several variants
thereof are PSPACE-complete. We ultra-strongly solve some nontrivial instances
of graph Ramsey avoidance games that are based on symmetric binary Ramsey
numbers and provide strong evidence that all other cases based on symmetric
binary Ramsey numbers are effectively intractable.
Keywords: combinatorial games, graph Ramsey theory, Ramsey game,
PSPACE-completeness, complexity, edge coloring, winning strategy, achievement
game, avoidance game, the game of Sim, Polya's enumeration formula,
probabilistic counting, machine learning, heuristics, Java applet
|
[{'version': 'v1', 'created': 'Wed, 10 Nov 1999 11:28:11 GMT'}]
|
2007-05-23
|
[array(['Slany', 'Wolfgang', ''], dtype=object)]
|
6,924 |
gr-qc/9710013
|
Chris Chambers
|
Chris M. Chambers, William A. Hiscock and Brett E. Taylor (Montana
State University)
|
The `Ups' and `Downs' of a Spinning Black Hole
|
3 pages (including 3 postscript figures), Latex. Uses mprocl.sty
(included). To appear in the proceedings of `The Eighth Marcel Grossmann
Meeting on General Relativity', 22-27 June 1997, The Hebrew University,
Jerusalem, Israel
| null | null |
MSUPHY9723
|
gr-qc
| null |
We report and comment upon the principal results of an investigation into the
evolution of rotating black holes emitting massless scalar radiation via the
Hawking process. It is demonstrated that a Kerr black hole evaporating by the
emission of scalar radiation will evolve towards a state with $a \approx
0.555M$. If the initial specific angular momentum is larger than this value the
hole will spin down to this value; if it is less it will spin up to this value.
The addition of higher spin fields to the picture strongly suggests the final
asymptotic state of a realistic evaporation process will be characterized by an
$a/M = 0$.
|
[{'version': 'v1', 'created': 'Thu, 2 Oct 1997 18:04:02 GMT'}]
|
2007-05-23
|
[array(['Chambers', 'Chris M.', '', 'Montana\n State University'],
dtype=object)
array(['Hiscock', 'William A.', '', 'Montana\n State University'],
dtype=object)
array(['Taylor', 'Brett E.', '', 'Montana\n State University'],
dtype=object) ]
|
6,925 |
1802.02702
|
Mehdi Salehifar
|
Mehdi Salehifar, Tejaswi Nanjundaswamy and Kenneth Rose
|
On Quantizer Design to Exploit Common Information in Layered Coding of
Vector Sources
| null | null | null | null |
eess.SP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
This paper studies a layered coding framework with a relaxed hierarchical
structure. Advances in wired/wireless communication and consumer electronic
devices have created a requirement for serving the same content at different
quality levels. The key challenge is to optimally encode all the required
quality levels with efficient usage of storage and networking resources. The
approach to store and transmit independent copies for every required quality
level is highly wasteful in resources. Alternatively, conventional scalable
coding has inherent loss due to its structure. This paper studies a layered
coding framework with a relaxed hierarchical structure to transmit information
common to different quality levels along with individual bit streams for each
quality level. The flexibility of sharing only a properly selected subset of
information from a lower quality level with the higher quality level, enables
achieving operating points between conventional scalable coding and independent
coding, to control the layered coding penalty. Jointly designing common and
individual layers' coders overcomes the limitations of conventional scalable
coding and non-scalable coding, by providing the flexibility of transmitting
common and individual bit-streams for different quality levels. It extracts the
common information between different quality levels with negligible performance
penalty. Simulation results for practically important sources, confirm the
superiority of the work.
|
[{'version': 'v1', 'created': 'Thu, 8 Feb 2018 03:34:32 GMT'}]
|
2018-02-09
|
[array(['Salehifar', 'Mehdi', ''], dtype=object)
array(['Nanjundaswamy', 'Tejaswi', ''], dtype=object)
array(['Rose', 'Kenneth', ''], dtype=object)]
|
6,926 |
1102.1801
|
Anca Visinescu
|
Anca Visinescu, Dan Grecu, Renato Fedele, Sergio De Nicola
|
Periodic and Solitary Wave Solutions of Two Component
Zakharov-Yajima-Oikawa System, Using Madelung's Approach
|
based on a talk at Symmetries and Integrability of Difference
Equations (SIDE-9), Varna, Bulgaria, June 2010
|
SIGMA 7 (2011), 041, 11 pages
|
10.3842/SIGMA.2011.041
| null |
nlin.SI
|
http://creativecommons.org/licenses/by-nc-sa/3.0/
|
Using the multiple scales method, the interaction between two bright and one
dark solitons is studied. Provided that a long wave-short wave resonance
condition is satisfied, the two-component Zakharov-Yajima-Oikawa (ZYO)
completely integrable system is obtained. By using a Madelung fluid
description, the one-soliton solutions of the corresponding ZYO system are
determined. Furthermore, a discussion on the interaction between one bright and
two dark solitons is presented. In particular, this problem is reduced to solve
a one-component ZYO system in the resonance conditions.
|
[{'version': 'v1', 'created': 'Wed, 9 Feb 2011 08:01:00 GMT'}
{'version': 'v2', 'created': 'Sat, 23 Apr 2011 06:37:32 GMT'}]
|
2011-04-26
|
[array(['Visinescu', 'Anca', ''], dtype=object)
array(['Grecu', 'Dan', ''], dtype=object)
array(['Fedele', 'Renato', ''], dtype=object)
array(['De Nicola', 'Sergio', ''], dtype=object)]
|
6,927 |
2306.10308
|
Florent Gu\'epin
|
Matthieu Meeus, Florent Guepin, Ana-Maria Cretu and Yves-Alexandre de
Montjoye
|
Achilles' Heels: Vulnerable Record Identification in Synthetic Data
Publishing
| null | null | null | null |
cs.CR cs.AI
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Synthetic data is seen as the most promising solution to share
individual-level data while preserving privacy. Shadow modeling-based
membership inference attacks (MIAs) have become the standard approach to
evaluate the privacy risk of synthetic data. While very effective, they require
a large number of datasets to be created and models trained to evaluate the
risk posed by a single record. The privacy risk of a dataset is thus currently
evaluated by running MIAs on a handful of records selected using ad-hoc
methods. We here propose what is, to the best of our knowledge, the first
principled vulnerable record identification technique for synthetic data
publishing, leveraging the distance to a record's closest neighbors. We show
our method to strongly outperform previous ad-hoc methods across datasets and
generators. We also show evidence of our method to be robust to the choice of
MIA and to specific choice of parameters. Finally, we show it to accurately
identify vulnerable records when synthetic data generators are made
differentially private. The choice of vulnerable records is as important as
more accurate MIAs when evaluating the privacy of synthetic data releases,
including from a legal perspective. We here propose a simple yet highly
effective method to do so. We hope our method will enable practitioners to
better estimate the risk posed by synthetic data publishing and researchers to
fairly compare ever improving MIAs on synthetic data.
|
[{'version': 'v1', 'created': 'Sat, 17 Jun 2023 09:42:46 GMT'}]
|
2023-06-21
|
[array(['Meeus', 'Matthieu', ''], dtype=object)
array(['Guepin', 'Florent', ''], dtype=object)
array(['Cretu', 'Ana-Maria', ''], dtype=object)
array(['de Montjoye', 'Yves-Alexandre', ''], dtype=object)]
|
6,928 |
1409.2023
|
Miklos Rasonyi Dr
|
Miklos Rasonyi
|
Optimal investment with bounded above utilities in discrete time markets
| null | null | null | null |
q-fin.PM math.PR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We consider an arbitrage-free, discrete time and frictionless market. We
prove that an investor maximising the expected utility of her terminal wealth
can always find an optimal investment strategy provided that her
dissatisfaction of infinite losses is infinite and her utility function is
non-decreasing, continuous and bounded above. The same result is shown for
cumulative prospect theory preferences, under additional assumptions.
|
[{'version': 'v1', 'created': 'Sat, 6 Sep 2014 15:31:51 GMT'}]
|
2014-09-09
|
[array(['Rasonyi', 'Miklos', ''], dtype=object)]
|
6,929 |
1602.01347
|
Antony Overstall
|
Antony Overstall, David Woods, Kieran Martin
|
Bayesian prediction for physical models with application to the
optimization of the synthesis of pharmaceutical products using chemical
kinetics
| null | null | null | null |
stat.OT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Quality control in industrial processes is increasingly making use of prior
scientific knowledge, often encoded in physical models that require numerical
approximation. Statistical prediction, and subsequent optimization, is key to
ensuring the process output meets a specification target. However, the
numerical expense of approximating the models poses computational challenges to
the identification of combinations of the process factors where there is
confidence in the quality of the response. Recent work in Bayesian computation
and statistical approximation (emulation) of expensive computational models is
exploited to develop a novel strategy for optimizing the posterior probability
of a process meeting specification. The ensuing methodology is motivated by,
and demonstrated on, a chemical synthesis process to manufacture a
pharmaceutical product, within which an initial set of substances evolve
according to chemical reactions, under certain process conditions, into a
series of new substances. One of these substances is a target pharmaceutical
product and two are unwanted by-products. The aim is to determine the
combinations of process conditions and amounts of initial substances that
maximize the probability of obtaining sufficient target pharmaceutical product
whilst ensuring unwanted by-products do not exceed a given level. The
relationship between the factors and amounts of substances of interest is
theoretically described by the solution to a system of ordinary differential
equations incorporating temperature dependence. Using data from a small
experiment, it is shown how the methodology can approximate the multivariate
posterior predictive distribution of the pharmaceutical target and by-products,
and therefore identify suitable operating values. Materials to replicate the
analysis can be found at www.github.com/amo105/chemicalkinetics.
|
[{'version': 'v1', 'created': 'Wed, 3 Feb 2016 15:52:24 GMT'}
{'version': 'v2', 'created': 'Thu, 16 Nov 2017 15:44:11 GMT'}
{'version': 'v3', 'created': 'Wed, 27 Jun 2018 09:50:06 GMT'}
{'version': 'v4', 'created': 'Mon, 22 Oct 2018 14:10:06 GMT'}]
|
2018-10-23
|
[array(['Overstall', 'Antony', ''], dtype=object)
array(['Woods', 'David', ''], dtype=object)
array(['Martin', 'Kieran', ''], dtype=object)]
|
6,930 |
1811.05707
|
Abderrahim Arabi
|
Abderrahim Arabi, Hac\`ene Belbachir, Jean-Philippe Dubernard
|
Plateau Polycubes and Lateral Area
|
15 pages, 15 figures
| null | null | null |
math.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper, we enumerate two families of polycubes, the directed plateau
polycubes and the plateau polycubes, with respect to the width and a new
parameter, the Lateral Area. We give an explicit formula and the generating
function for each of the two families of polycubes. Moreover, some asymptotic
results about plateau polycubes are provided. We also establish results
concerning the enumeration of column-convex polyominoes that are useful to get
asymptotic results of polycubes.
|
[{'version': 'v1', 'created': 'Wed, 14 Nov 2018 10:00:21 GMT'}]
|
2018-11-15
|
[array(['Arabi', 'Abderrahim', ''], dtype=object)
array(['Belbachir', 'Hacène', ''], dtype=object)
array(['Dubernard', 'Jean-Philippe', ''], dtype=object)]
|
6,931 |
2204.14089
|
Benjamin Zwick
|
Benjamin F. Zwick, George C. Bourantas, Farah Alkhatib, Adam Wittek
and Karol Miller
|
Recovery by discretization corrected particle strength exchange (DC PSE)
operators
| null | null | null | null |
math.NA cs.CE cs.NA
|
http://creativecommons.org/licenses/by-nc-nd/4.0/
|
A new recovery technique based on discretization corrected particle strength
exchange (DC PSE) operators is developed in this paper. DC PSE is a collocation
method that can be used to compute derivatives directly at nodal points,
instead of by projection from Gauss points as is done in many finite
element-based recovery techniques. The proposed method is truly meshless and
does not require patches of elements to be defined, which makes it generally
applicable to point clouds and arbitrary element topologies. Numerical examples
show that the proposed method is accurate and robust.
|
[{'version': 'v1', 'created': 'Fri, 15 Apr 2022 12:49:46 GMT'}]
|
2022-05-02
|
[array(['Zwick', 'Benjamin F.', ''], dtype=object)
array(['Bourantas', 'George C.', ''], dtype=object)
array(['Alkhatib', 'Farah', ''], dtype=object)
array(['Wittek', 'Adam', ''], dtype=object)
array(['Miller', 'Karol', ''], dtype=object)]
|
6,932 |
0709.2219
|
Miloslav Svec
|
Miloslav Svec
|
Determination of S- and P-wave helicity amplitudes and non-unitary
evolution of pion creation process pi(-)p -> pi(-)pi(+)n on polarized target
|
41 pages, 20 figures, 4 tables
| null | null | null |
hep-ph
| null |
We present the first model independent determination of S- and P-wave
helicity amplitudes from CERN measurements of pi(-)p -> pi(-)pi(+)n on
polarized target at small t and dipion masses 580-1080 MeV. The purely
analytical determination of the helicity amplitudes is made possible by our
finding analytical solution for relative phase omega_ij between S-wave
amplitudes S_d and S_u of opposite transversity for each set of solutions for
transversity amplitudes A_u(i), A_d(j),i,j=1,2. Of the six possible solutions
for omega_ij only the solution with omega_ij=pi yields physical helicity
amplitudes. Assigning rho^0(770) phase to the dominant P-wave helicity flip
amplitude L_1(ij) necessitates a phase of the S-wave helicity flip amplitude
S_1(ij) that is near to the rho^0(770) phase.These two amplitudes are
consistent with rho^0(770)-f_0(980) mixing. The relative phases omega_ij=pi
satisfy certain selfconsistency relation that must be satisfied in order for
the four sets of solutions A_u(i),A_d(j),i,j=1,2 to be all physical solutions
that can be identified with coevolution amplitudes describing the interaction
of the pion creation process with a quantum environment. This test on phases
omega_ij provides a new test of Kraus representation of the mixed final state
density matrix. We show that the probabilities p_ij determining the final state
rho_f in terms of solution states rho_f(ij) can be determined in measurements
of recoil hyperon polarization in pi(-)p->pi(-)K(+)Lambda0 on polarized target.
|
[{'version': 'v1', 'created': 'Fri, 14 Sep 2007 13:26:38 GMT'}]
|
2007-09-17
|
[array(['Svec', 'Miloslav', ''], dtype=object)]
|
6,933 |
0910.4103
|
Ruth Kellerhals
|
Ruth Kellerhals, Genevieve Perren
|
On the growth of cocompact hyperbolic Coxeter groups
|
24 pages
| null | null | null |
math.MG math.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
For an arbitrary cocompact hyperbolic Coxeter group G with finite generator
set S and complete growth function P(x)/Q(x), we provide a recursion formula
for the coefficients of the denominator polynomial Q(x) which allows to
determine recursively the Taylor coefficients and the pole behavior of the
growth function of G in terms of its Coxeter subgroup structure. We illustrate
this in the easy case of compact right-angled hyperbolic n-polytopes. Finally,
we provide detailed insight into the case of Coxeter groups with at most 6
generators, acting cocompactly on hyperbolic 4-space, by considering the three
combinatorially different families discovered and classified by Lanner,
Kaplinskaya and Esselmann, respectively.
|
[{'version': 'v1', 'created': 'Wed, 21 Oct 2009 14:40:00 GMT'}
{'version': 'v2', 'created': 'Wed, 23 Jun 2010 08:37:35 GMT'}]
|
2010-06-24
|
[array(['Kellerhals', 'Ruth', ''], dtype=object)
array(['Perren', 'Genevieve', ''], dtype=object)]
|
6,934 |
1008.1945
|
Geoffrey Clayton
|
Geoffrey C. Clayton, B. Sargent, M.L. Boyer, B. A. Whitney, Jacco Th.
van Loon, M. Meixner, P. Tisserand, C. Engelbracht, S. Hony, R. Indebetouw,
K. A. Misselt, K. Okumura, P. Panuzzo, J. Roman-Duval, M. Sauvage, J. M.
Oliveira, M. Sewilo, and E. Churchwell
|
Herschel Observations of a Newly Discovered UX Ori Star in the Large
Magellanic Cloud
|
ApJ, in press. 9 pages, 5 figures
| null |
10.1088/0004-637X/722/2/1131
| null |
astro-ph.SR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The LMC star, SSTISAGE1C J050756.44-703453.9, was first noticed during a
survey of EROS-2 lightcurves for stars with large irregular brightness
variations typical of the R Coronae Borealis (RCB) class. However, the visible
spectrum showing emission lines including the Balmer and Paschen series as well
as many Fe II lines is emphatically not that of an RCB star. This star has all
of the characteristics of a typical UX Ori star. It has a spectral type of
approximately A2 and has excited an H II region in its vicinity. However, if it
is an LMC member, then it is very luminous for a Herbig Ae/Be star. It shows
irregular drops in brightness of up to 2 mag, and displays the reddening and
"blueing" typical of this class of stars. Its spectrum, showing a combination
of emission and absorption lines, is typical of a UX Ori star that is in a
decline caused by obscuration from the circumstellar dust. SSTISAGE1C
J050756.44-703453.9 has a strong IR excess and significant emission is present
out to 500 micron. Monte Carlo radiative transfer modeling of the SED requires
that SSTISAGE1C J050756.44-703453.9 has both a dusty disk as well as a large
extended diffuse envelope to fit both the mid- and far-IR dust emission. This
star is a new member of the UX Ori subclass of the Herbig Ae/Be stars and only
the second such star to be discovered in the LMC.
|
[{'version': 'v1', 'created': 'Wed, 11 Aug 2010 15:54:29 GMT'}]
|
2015-05-19
|
[array(['Clayton', 'Geoffrey C.', ''], dtype=object)
array(['Sargent', 'B.', ''], dtype=object)
array(['Boyer', 'M. L.', ''], dtype=object)
array(['Whitney', 'B. A.', ''], dtype=object)
array(['van Loon', 'Jacco Th.', ''], dtype=object)
array(['Meixner', 'M.', ''], dtype=object)
array(['Tisserand', 'P.', ''], dtype=object)
array(['Engelbracht', 'C.', ''], dtype=object)
array(['Hony', 'S.', ''], dtype=object)
array(['Indebetouw', 'R.', ''], dtype=object)
array(['Misselt', 'K. A.', ''], dtype=object)
array(['Okumura', 'K.', ''], dtype=object)
array(['Panuzzo', 'P.', ''], dtype=object)
array(['Roman-Duval', 'J.', ''], dtype=object)
array(['Sauvage', 'M.', ''], dtype=object)
array(['Oliveira', 'J. M.', ''], dtype=object)
array(['Sewilo', 'M.', ''], dtype=object)
array(['Churchwell', 'E.', ''], dtype=object)]
|
6,935 |
1109.6175
|
William Chaplin
|
William J. Chaplin
|
Future prospects for inference on solar-type stars
|
8 pages, 1 figure. To appear in the ASP proceedings of "The 61st
Fujihara seminar: Progress in solar/stellar physics with helio- and
asteroseismology", 13th-17th March 2011, Hakone, Japan
| null | null | null |
astro-ph.SR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We discuss prospects for asteroseismic inference on solar-type stars, in
particular opportunities that are being made possible by the large ensemble of
exquisite-quality Kepler data.
|
[{'version': 'v1', 'created': 'Wed, 28 Sep 2011 11:47:02 GMT'}]
|
2011-09-29
|
[array(['Chaplin', 'William J.', ''], dtype=object)]
|
6,936 |
1305.1208
|
Etienne Pardoux
|
Mamadou Ba, Etienne Pardoux and Ahmadou Bamba Sow
|
Binary trees, exploration processes, and an extented Ray--Knight Theorem
| null |
Journal Applied Probability 49 (2012) 210-225
|
10.1239/jap/1331216843
| null |
math.PR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study the bijection between binary Galton--Watson trees in continuous time
and their exploration process, both in the sub- and in the supercritical cases.
We then take the limit over renormalized quantities, as the size of the
population tends to infinity. We thus deduce Delmas' generalization of the
second Ray--Knight theorem.
|
[{'version': 'v1', 'created': 'Mon, 6 May 2013 14:30:15 GMT'}]
|
2013-05-07
|
[array(['Ba', 'Mamadou', ''], dtype=object)
array(['Pardoux', 'Etienne', ''], dtype=object)
array(['Sow', 'Ahmadou Bamba', ''], dtype=object)]
|
6,937 |
math/0307368
|
Phillip E. Parker
|
C. Jang, K. Park and P.E. Parker
|
PseudoH-type 2-step nilpotent Lie groups
|
tp+23 pp
|
Houston J. Math. 31 (2005) 765--786
| null | null |
math.DG
| null |
PseudoH-type is a natural generalization of H-type to geometries with
indefinite metric tensors. We give a complete determination of the conjugate
locus including multiplicities. We also obtain a partial characterization in
terms of the abundance of totally geodesic, 3-dimensional submanifolds.
|
[{'version': 'v1', 'created': 'Mon, 28 Jul 2003 20:41:05 GMT'}]
|
2007-05-23
|
[array(['Jang', 'C.', ''], dtype=object)
array(['Park', 'K.', ''], dtype=object)
array(['Parker', 'P. E.', ''], dtype=object)]
|
6,938 |
1409.4486
|
Makiko Nagasawa
|
M. Nagasawa, K. K. Tanaka, H. Tanaka, T. Nakamoto, H. Miura, T.
Yamamoto
|
Revisiting Jovian-Resonance Induced Chondrule Formation
|
7 pages, 4 figures, accepted for publication in ApJL
| null |
10.1088/2041-8205/794/1/L7
| null |
astro-ph.EP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
It is proposed that planetesimals perturbed by Jovian mean-motion resonances
are the source of shock waves that form chondrules. It is considered that this
shock-induced chondrule formation requires the velocity of the planetesimal
relative to the gas disk to be on the order of > 7 km/s at 1 AU. In previous
studies on planetesimal excitation, the effects of Jovian mean-motion resonance
together with the gas drag were investigated, but the velocities obtained were
at most 8 km/s in the asteroid belt, which is insufficient to account for the
ubiquitous existence of chondrules. In this paper, we reexamine the effect of
Jovian resonances and take into account the secular resonance in the asteroid
belt caused by the gravity of the gas disk. We find that the velocities
relative to the gas disk of planetesimals a few hundred kilometers in size
exceed 12 km/s, and that this is achieved around the 3:1 mean-motion resonance.
The heating region is restricted to a relatively narrow band between 1.5 AU and
3.5 AU. Our results suggest that chondrules were produced effectively in the
asteroid region after Jovian formation. We also find that many planetesimals
are scattered far beyond Neptune. Our findings can explain the presence of
crystalline silicate in comets if the scattered planetesimals include silicate
dust processed by shock heating.
|
[{'version': 'v1', 'created': 'Tue, 16 Sep 2014 02:32:11 GMT'}]
|
2015-06-22
|
[array(['Nagasawa', 'M.', ''], dtype=object)
array(['Tanaka', 'K. K.', ''], dtype=object)
array(['Tanaka', 'H.', ''], dtype=object)
array(['Nakamoto', 'T.', ''], dtype=object)
array(['Miura', 'H.', ''], dtype=object)
array(['Yamamoto', 'T.', ''], dtype=object)]
|
6,939 |
1410.3780
|
Jimmie Doll
|
J. D. Doll and Paul Dupuis
|
On Performance Measures for Infinite Swapping Monte Carlo Methods
|
52 pages, 19 figures
| null |
10.1063/1.4904890
| null |
cond-mat.stat-mech cond-mat.soft
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We introduce and illustrate a number of performance measures for rare-event
sampling methods. These measures are designed to be of use in a variety of
expanded ensemble techniques including parallel tempering as well as infinite
and partial infinite swapping approaches. Using a variety of selected
applications we address questions concerning the variation of sampling
performance with respect to key computational ensemble parameters.
|
[{'version': 'v1', 'created': 'Tue, 14 Oct 2014 18:10:27 GMT'}]
|
2015-06-23
|
[array(['Doll', 'J. D.', ''], dtype=object)
array(['Dupuis', 'Paul', ''], dtype=object)]
|
6,940 |
0905.3750
|
Sean Raymond
|
Sean N. Raymond, David P. O'Brien, Alessandro Morbidelli, Nathan A.
Kaib
|
Building the Terrestrial Planets: Constrained Accretion in the Inner
Solar System
|
Accepted to Icarus. 21 pages, 12 figures, 5 tables in emulateapj
format. Figures 3 and 4 degraded. For full-resolution see
http://casa.colorado.edu/~raymonsn/ms_emulateapj.pdf
| null |
10.1016/j.icarus.2009.05.016
| null |
astro-ph.EP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
To date, no accretion model has succeeded in reproducing all observed
constraints in the inner Solar System. These constraints include 1) the orbits,
in particular the small eccentricities, and 2) the masses of the terrestrial
planets -- Mars' relatively small mass in particular has not been adequately
reproduced in previous simulations; 3) the formation timescales of Earth and
Mars, as interpreted from Hf/W isotopes; 4) the bulk structure of the asteroid
belt, in particular the lack of an imprint of planetary embryo-sized objects;
and 5) Earth's relatively large water content, assuming that it was delivered
in the form of water-rich primitive asteroidal material. Here we present
results of 40 high-resolution (N=1000-2000) dynamical simulations of late-stage
planetary accretion with the goal of reproducing these constraints, although
neglecting the planet Mercury. We assume that Jupiter and Saturn are
fully-formed at the start of each simulation, and test orbital configurations
that are both consistent with and contrary to the "Nice model." We find that a
configuration with Jupiter and Saturn on circular orbits forms low-eccentricity
terrestrial planets and a water-rich Earth on the correct timescale, but Mars'
mass is too large by a factor of 5-10 and embryos are often stranded in the
asteroid belt. A configuration with Jupiter and Saturn in their current
locations but with slightly higher initial eccentricities (e = 0.07-0.1)
produces a small Mars, an embryo-free asteroid belt, and a reasonable Earth
analog but rarely allows water delivery to Earth. None of the configurations we
tested reproduced all the observed constraints. (abridged)
|
[{'version': 'v1', 'created': 'Fri, 22 May 2009 20:16:38 GMT'}]
|
2015-05-13
|
[array(['Raymond', 'Sean N.', ''], dtype=object)
array(["O'Brien", 'David P.', ''], dtype=object)
array(['Morbidelli', 'Alessandro', ''], dtype=object)
array(['Kaib', 'Nathan A.', ''], dtype=object)]
|
6,941 |
1107.2882
|
Miguel Oliveira
|
Miguel A. Oliveira
|
Velocity measurements in General Relativity revisited
|
15 pages, 3 figures
| null | null | null |
gr-qc
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this work we generalize an earlier treatment of the measurements of
velocities at the event horizon of a black hole. This is intended as a
pedagogical exercise as well as one more contribution to the resolution of some
unphysical interpretations related to velocity measurements by generalized
observers. We now use a more general metric and, non-geodesic observer sets to
show that the velocity of a test particle at the event horizon is less than the
speed of light.
|
[{'version': 'v1', 'created': 'Thu, 14 Jul 2011 18:16:52 GMT'}]
|
2011-07-15
|
[array(['Oliveira', 'Miguel A.', ''], dtype=object)]
|
6,942 |
1202.1279
|
Andrea Marinucci
|
A. Marinucci, G. Risaliti, Junfeng Wang, E. Nardini, M. Elvis, G.
Fabbiano, S. Bianchi, G. Matt
|
The X-ray reflector in NGC 4945: a time and space resolved portrait
|
6 pages, 4 figures, 1 table. Accepted for publication in MNRAS
| null |
10.1111/j.1745-3933.2012.01232.x
| null |
astro-ph.CO astro-ph.GA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We present a time, spectral and imaging analysis of the X-ray reflector in
NGC 4945, which reveals its geometrical and physical structure with
unprecedented detail. NGC 4945 hosts one of the brightest AGN in the sky above
10 keV, but it is only visible through its reflected/scattered emission below
10 keV, due to absorption by a column density of ~4\times10^24 cm-2. A new
Suzaku campaign of 5 observations spanning ~6 months, together with past
XMM-Newton and Chandra observations, show a remarkable constancy (within <10%)
of the reflected component. Instead, Swift-BAT reveals strong intrinsic
variability on time scales longer than one year. Modeling the circumnuclear gas
as a thin cylinder with the axis on the plane of the sky, we show that the
reflector is at a distance >30-50 pc, well within the imaging capabilities of
Chandra at the distance of NGC 4945 (1"~18 pc). Accordingly, the Chandra
imaging reveals a resolved, flattened, ~150 pc-long clumpy structure, whose
spectrum is fully due to cold reflection of the primary AGN emission. The
clumpiness may explain the small covering factor derived from the spectral and
variability properties.
|
[{'version': 'v1', 'created': 'Mon, 6 Feb 2012 21:00:01 GMT'}]
|
2015-06-04
|
[array(['Marinucci', 'A.', ''], dtype=object)
array(['Risaliti', 'G.', ''], dtype=object)
array(['Wang', 'Junfeng', ''], dtype=object)
array(['Nardini', 'E.', ''], dtype=object)
array(['Elvis', 'M.', ''], dtype=object)
array(['Fabbiano', 'G.', ''], dtype=object)
array(['Bianchi', 'S.', ''], dtype=object)
array(['Matt', 'G.', ''], dtype=object)]
|
6,943 |
1801.06812
|
Michael Felderer
|
Michael Felderer, Juergen Grossmann, Ina Schieferdecker
|
Recent Results on Classifying Risk-Based Testing Approaches
| null | null | null | null |
cs.SE
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In order to optimize the usage of testing efforts and to assess risks of
software-based systems, risk-based testing uses risk (re-)assessments to steer
all phases in a test process. Several risk-based testing approaches have been
proposed in academia and/or applied in industry, so that the determination of
principal concepts and methods in risk-based testing is needed to enable a
comparison of the weaknesses and strengths of different risk-based testing
approaches. In this chapter we provide an (updated) taxonomy of risk-based
testing aligned with risk considerations in all phases of a test process. It
consists of three top-level classes, i.e., contextual setup, risk assessment,
and risk-based test strategy. This taxonomy provides a framework to understand,
categorize, assess and compare risk-based testing approaches to support their
selection and tailoring for specific purposes. Furthermore, we position four
recent risk-based testing approaches into the taxonomy in order to demonstrate
its application and alignment with available risk-based testing approaches.
|
[{'version': 'v1', 'created': 'Sun, 21 Jan 2018 12:19:15 GMT'}]
|
2018-01-23
|
[array(['Felderer', 'Michael', ''], dtype=object)
array(['Grossmann', 'Juergen', ''], dtype=object)
array(['Schieferdecker', 'Ina', ''], dtype=object)]
|
6,944 |
2105.01654
|
Assaf Rabinowicz
|
Assaf Rabinowicz, Saharon Rosset
|
Resampling Methods for Detecting Anisotropic Correlation Structure
| null | null | null | null |
stat.ME
|
http://creativecommons.org/licenses/by/4.0/
|
This paper proposes parametric and non-parametric hypothesis testing
algorithms for detecting anisotropy -- rotational variance of the covariance
function in random fields. Both algorithms are based on resampling mechanisms,
which enable avoiding relying on asymptotic assumptions, as is common in
previous algorithms. The algorithms' performance is illustrated numerically in
simulation experiments and on real datasets representing a variety of potential
challenges.
|
[{'version': 'v1', 'created': 'Tue, 4 May 2021 17:58:51 GMT'}
{'version': 'v2', 'created': 'Sun, 6 Jun 2021 14:32:56 GMT'}]
|
2021-06-08
|
[array(['Rabinowicz', 'Assaf', ''], dtype=object)
array(['Rosset', 'Saharon', ''], dtype=object)]
|
6,945 |
1506.08198
|
Alessandra Mastrobuono Battisti
|
Alessandra Mastrobuono-Battisti and Hagai B. Perets
|
Second generation stellar disks in Dense Star Clusters and cluster
ellipticities
|
8 pages, 6 figures. Accepted for publication in ApJ
| null |
10.3847/0004-637X/823/1/61
| null |
astro-ph.GA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Globular Clusters (GCs) and Nuclear Star Clusters (NSCs) are typically
composed by several stellar populations, characterized by different chemical
compositions. Different populations show different ages in NSCs but not
necessarily in GCs. The youngest populations in NSCs appear to reside in
disk-like structures, as observed in our Galaxy and in M31. Gas infall followed
by formation of second generation (SG) stars in GCs may similarly form
disk-like structures in the clusters nuclei. Here we explore this possibility
and follow the long term evolution of stellar disks embedded in GCs, and study
their effects on the evolution of the clusters. We study disks with different
masses by means of detailed N-body simulations and explore their morphological
and kinematic signatures on the GC structures. We find that as a second
generation disk relaxes, the old, first generation, stellar population flattens
and becomes more radially anisotropic, making the GC structure become more
elliptical. The second generation stellar population is characterized by a
lower velocity dispersion, and a higher rotational velocity, compared with the
primordial older population. The strength of these kinematic signatures depends
both on the relaxation time of the system and on the fractional mass of the
second generation disk. We therefore conclude that SG populations formed in
flattened configurations will give rise to two systematic trends: (1) Positive
correlation between GC ellipticity and fraction of SG population (2) Positive
correlation between GC relaxation time and ellipticity. Thereby GC
ellipticities and rotation could be related to the formation of SG stars and
their initial configuration.
|
[{'version': 'v1', 'created': 'Fri, 26 Jun 2015 20:00:26 GMT'}
{'version': 'v2', 'created': 'Tue, 22 Mar 2016 10:25:42 GMT'}]
|
2016-06-01
|
[array(['Mastrobuono-Battisti', 'Alessandra', ''], dtype=object)
array(['Perets', 'Hagai B.', ''], dtype=object)]
|
6,946 |
2211.12619
|
Ebba Mark
|
Ebba Mark, Ryan Rafaty, Moritz Schwarz
|
Spatial-temporal dynamics of employment shocks in declining coal mining
regions and potentialities of the 'just transition'
| null | null | null | null |
econ.GN q-fin.EC
|
http://creativecommons.org/licenses/by/4.0/
|
The United States, much like other countries around the world, faces
significant obstacles to achieving a rapid decarbonization of its economy.
Crucially, decarbonization disproportionately affects the communities that have
been historically, politically, and socially embedded in the nation's fossil
fuel production. However, this effect has rarely been quantified in the
literature. Using econometric estimation methods that control for unobserved
heterogeneity via two-way fixed effects, spatial effects, heterogeneous time
trends, and grouped fixed effects, we demonstrate that mine closures induce a
significant and consistent contemporaneous rise in the unemployment rate across
US counties. A single mine closure can raise a county's unemployment rate by
0.056 percentage points in a given year; this effect is amplified by a factor
of four when spatial econometric dynamics are considered. Although this
response in the unemployment rate fades within 2-3 years, it has far-reaching
effects in its immediate vicinity. Furthermore, we use cluster analysis to
build a novel typology of coal counties based on qualities that are thought to
facilitate a successful recovery in the face of local industrial decline. The
combined findings of the econometric analysis and typology point to the
importance of investing in alternative sectors in places with promising levels
of economic diversity, retraining job seekers in places with lower levels of
educational attainment, providing relocation (or telecommuting) support in
rural areas, and subsidizing childcare and after school programs in places with
low female labor force participation due to the gendered division of domestic
work.
|
[{'version': 'v1', 'created': 'Tue, 22 Nov 2022 22:49:56 GMT'}]
|
2022-11-24
|
[array(['Mark', 'Ebba', ''], dtype=object)
array(['Rafaty', 'Ryan', ''], dtype=object)
array(['Schwarz', 'Moritz', ''], dtype=object)]
|
6,947 |
2005.13761
|
Fanjun Meng
|
Fanjun Meng
|
Pushforwards of klt pairs under morphisms to abelian varieties
|
29 pages
|
Math. Ann. 380 (2021), no. 3, 1655-1685
|
10.1007/s00208-021-02205-7
| null |
math.AG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Let $f$ be a morphism from a klt pair $(X, \Delta)$ to an abelian variety
$A$, $m\geq1$ a rational number and $D$ a Cartier divisor on $X$ such that
$D\sim_{\mathbb Q}m(K_X+\Delta)$. We prove that the sheaf $f_*\mathcal{O}_X(D)$
becomes globally generated after pullback by an isogeny and has the Chen-Jiang
decomposition, along with some related results. These are applied to some
effective results for $\mathcal{O}_X(D)$ when $X$ is irregular.
|
[{'version': 'v1', 'created': 'Thu, 28 May 2020 03:22:47 GMT'}]
|
2021-08-10
|
[array(['Meng', 'Fanjun', ''], dtype=object)]
|
6,948 |
1907.11699
|
Segev BenZvi
|
IceCube Collaboration: M. G. Aartsen, M. Ackermann, J. Adams, J. A.
Aguilar, M. Ahlers, M. Ahrens, C. Alispach, K. Andeen, T. Anderson, I.
Ansseau, G. Anton, C. Arg\"uelles, J. Auffenberg, S. Axani, P. Backes, H.
Bagherpour, X. Bai, A. Balagopal V., A. Barbano, S. W. Barwick, B. Bastian,
V. Baum, S. Baur, R. Bay, J. J. Beatty, K.-H. Becker, J. Becker Tjus, S.
BenZvi, D. Berley, E. Bernardini, D. Z. Besson, G. Binder, D. Bindig, E.
Blaufuss, S. Blot, C. Bohm, M. B\"orner, S. B\"oser, O. Botner, J.
B\"ottcher, E. Bourbeau, J. Bourbeau, F. Bradascio, J. Braun, S. Bron, J.
Brostean-Kaiser, A. Burgman, J. Buscher, R. S. Busse, T. Carver, C. Chen, E.
Cheung, D. Chirkin, K. Clark, L. Classen, A. Coleman, G. H. Collin, J. M.
Conrad, P. Coppin, P. Correa, D. F. Cowen, R. Cross, P. Dave, J. P. A. M. de
Andr\'e, C. De Clercq, J. J. DeLaunay, H. Dembinski, K. Deoskar, S. De
Ridder, P. Desiati, K. D. de Vries, G. de Wasseige, M. de With, T. DeYoung,
A. Diaz, J. C. D\'iaz-V\'elez, H. Dujmovic, M. Dunkman, E. Dvorak, B.
Eberhardt, T. Ehrhardt, P. Eller, R. Engel, P. A. Evenson, S. Fahey, A. R.
Fazely, J. Felde, K. Filimonov, C. Finley, A. Franckowiak, E. Friedman, A.
Fritz, T. K. Gaisser, J. Gallagher, E. Ganster, S. Garrappa, L. Gerhardt, K.
Ghorbani, T. Glauch, T. Gl\"usenkamp, A. Goldschmidt, J. G. Gonzalez, D.
Grant, Z. Griffith, S. Griswold, M. G\"under, M. G\"und\"uz, C. Haack, A.
Hallgren, L. Halve, F. Halzen, K. Hanson, A. Haungs, D. Hebecker, D.
Heereman, P. Heix, K. Helbing, R. Hellauer, F. Henningsen, S. Hickford, J.
Hignight, G. C. Hill, K. D. Hoffman, R. Hoffmann, T. Hoinka, B.
Hokanson-Fasig, K. Hoshina, F. Huang, M. Huber, T. Huber, K. Hultqvist, M.
H\"unnefeld, R. Hussain, S. In, N. Iovine, A. Ishihara, G. S. Japaridze, M.
Jeong, K. Jero, B. J. P. Jones, F. Jonske, R. Joppe, D. Kang, W. Kang, A.
Kappes, D. Kappesser, T. Karg, M. Karl, A. Karle, U. Katz, M. Kauer, J. L.
Kelley, A. Kheirandish, J. Kim, T. Kintscher, J. Kiryluk, T. Kittler, S. R.
Klein, R. Koirala, H. Kolanoski, L. K\"opke, C. Kopper, S. Kopper, D. J.
Koskinen, M. Kowalski, K. Krings, G. Kr\"uckl, N. Kulacz, N. Kurahashi, A.
Kyriacou, M. Labare, J. L. Lanfranchi, M. J. Larson, F. Lauber, J. P. Lazar,
K. Leonard, A. Leszczy\'nska, M. Leuermann, Q. R. Liu, E. Lohfink, C. J.
Lozano Mariscal, L. Lu, F. Lucarelli, J. L\"unemann, W. Luszczak, Y. Lyu, W.
Y. Ma, J. Madsen, G. Maggi, K. B. M. Mahn, Y. Makino, P. Mallik, K. Mallot,
S. Mancina, I. C. Mari\c{s}, R. Maruyama, K. Mase, R. Maunu, F. McNally, K.
Meagher, M. Medici, A. Medina, M. Meier, S. Meighen-Berger, T. Menne, G.
Merino, T. Meures, J. Micallef, G. Moment\'e, T. Montaruli, R. W. Moore, R.
Morse, M. Moulai, P. Muth, R. Nagai, U. Naumann, G. Neer, H. Niederhausen, S.
C. Nowicki, D. R. Nygren, A. Obertacke Pollmann, M. Oehler, A. Olivas, A.
O'Murchadha, E. O'Sullivan, T. Palczewski, H. Pandya, D. V. Pankova, N. Park,
P. Peiffer, C. P\'erez de los Heros, S. Philippen, D. Pieloth, E. Pinat, A.
Pizzuto, M. Plum, A. Porcelli, P. B. Price, G. T. Przybylski, C. Raab, A.
Raissi, M. Rameez, L. Rauch, K. Rawlins, I. C. Rea, R. Reimann, B.
Relethford, M. Renschler, G. Renzi, E. Resconi, W. Rhode, M. Richman, S.
Robertson, M. Rongen, C. Rott, T. Ruhe, D. Ryckbosch, D. Rysewyk, I. Safa, S.
E. Sanchez Herrera, A. Sandrock, J. Sandroos, M. Santander, S. Sarkar, S.
Sarkar, K. Satalecka, M. Schaufel, H. Schieler, P. Schlunder, T. Schmidt, A.
Schneider, J. Schneider, F. G. Schr\"oder, L. Schumacher, S. Sclafani, D.
Seckel, S. Seunarine, S. Shefali, M. Silva, R. Snihur, J. Soedingrekso, D.
Soldin, M. Song, G. M. Spiczak, C. Spiering, J. Stachurska, M. Stamatikos, T.
Stanev, R. Stein, P. Steinm\"uller, J. Stettner, A. Steuer, T. Stezelberger,
R. G. Stokstad, A. St\"o{\ss}l, N. L. Strotjohann, T. St\"urwald, T.
Stuttard, G. W. Sullivan, M. Sutherland, I. Taboada, F. Tenholt, S.
Ter-Antonyan, A. Terliuk, S. Tilav, L. Tomankova, C. T\"onnis, S. Toscano, D.
Tosi, A. Trettin, M. Tselengidou, C. F. Tung, A. Turcati, R. Turcotte, C. F.
Turley, B. Ty, E. Unger, M. A. Unland Elorrieta, M. Usner, J. Vandenbroucke,
W. Van Driessche, D. van Eijk, N. van Eijndhoven, S. Vanheule, J. van Santen,
M. Vraeghe, C. Walck, A. Wallace, M. Wallraff, N. Wandkowsky, T. B. Watson,
C. Weaver, A. Weindl, M. J. Weiss, J. Weldert, C. Wendt, J. Werthebach, S.
Westerhoff, B. J. Whelan, N. Whitehorn, K. Wiebe, C. H. Wiebusch, L. Wille,
D. R. Williams, L. Wills, M. Wolf, J. Wood, T. R. Wood, K. Woschnagg, G.
Wrede, D. L. Xu, X. W. Xu, Y. Xu, J. P. Yanez, G. Yodh, S. Yoshida, T. Yuan,
M. Z\"ocklein
|
The IceCube Neutrino Observatory -- Contributions to the 36th
International Cosmic Ray Conference (ICRC2019)
|
To access this list of contributions from IceCube, please follow the
"HTML" link
| null | null | null |
astro-ph.HE astro-ph.IM
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Contributions from the IceCube Collaboration presented at the 36th
International Cosmic Ray Conference, 24 July - 1 August 2019, Madison,
Wisconsin, USA.
|
[{'version': 'v1', 'created': 'Thu, 25 Jul 2019 14:33:01 GMT'}]
|
2019-07-29
|
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array(['Whelan', 'B. J.', ''], dtype=object)
array(['Whitehorn', 'N.', ''], dtype=object)
array(['Wiebe', 'K.', ''], dtype=object)
array(['Wiebusch', 'C. H.', ''], dtype=object)
array(['Wille', 'L.', ''], dtype=object)
array(['Williams', 'D. R.', ''], dtype=object)
array(['Wills', 'L.', ''], dtype=object)
array(['Wolf', 'M.', ''], dtype=object)
array(['Wood', 'J.', ''], dtype=object)
array(['Wood', 'T. R.', ''], dtype=object)
array(['Woschnagg', 'K.', ''], dtype=object)
array(['Wrede', 'G.', ''], dtype=object)
array(['Xu', 'D. L.', ''], dtype=object)
array(['Xu', 'X. W.', ''], dtype=object)
array(['Xu', 'Y.', ''], dtype=object)
array(['Yanez', 'J. P.', ''], dtype=object)
array(['Yodh', 'G.', ''], dtype=object)
array(['Yoshida', 'S.', ''], dtype=object)
array(['Yuan', 'T.', ''], dtype=object)
array(['Zöcklein', 'M.', ''], dtype=object)]
|
6,949 |
1905.11270
|
Bertrand Eynard
|
Bertrand Eynard
|
Large genus behavior of topological recursion
|
13 pages, latex
| null | null |
IPHT-T019/052, CRM-3374, IHES, HALcea-02126908
|
math-ph hep-th math.MP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We show that for a rather generic set of regular spectral curves, the
Topological-Recursion invariants F_g grow at most like $O((\beta g)! r^{-g}) $
with some $r>0$ and $\beta\leq 5$.
|
[{'version': 'v1', 'created': 'Mon, 27 May 2019 14:40:28 GMT'}]
|
2019-05-28
|
[array(['Eynard', 'Bertrand', ''], dtype=object)]
|
6,950 |
1112.2832
|
Clara Grygiel
|
C. Grygiel, H. Lebius, S. Bouffard, A. Quentin, J. M. Ramillon, T.
Madi, S. Guillous, T. Been, P. Guinement, D. Lelievre, and I. Monnet
|
Online in-situ X-ray diffraction setup for structural modification
studies during swift heavy ion irradiation
|
12 pages, 8 figures, Accepted to Review of Scientific Instruments
|
Rev. Sci. Instrum. Volume 83, Issue 1, 013902 (2012)
|
10.1063/1.3680106
| null |
cond-mat.mtrl-sci
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The high energy density of electronic excitations due to the impact of swift
heavy ions can induce structural modifications in materials. We present a X-ray
diffractometer called ALIX, which has been set up at the low-energy IRRSUD
beamline of the GANIL facility, to allow the study of structural modification
kinetics as a function of the ion fluence. The X-ray setup has been modified
and optimized to enable irradiation by swift heavy ions simultaneously to X-ray
pattern recording. We present the capability of ALIX to perform simultaneous
irradiation - diffraction by using energy discrimination between X-rays from
diffraction and from ion-target interaction. To illustrate its potential,
results of sequential or simultaneous irradiation - diffraction are presented
in this article to show radiation effects on the structural properties of
ceramics. Phase transition kinetics have been studied during xenon ion
irradiation of polycrystalline MgO and SrTiO3. We have observed that MgO oxide
is radiation-resistant to high electronic excitations, contrary to the high
sensitivity of SrTiO3, which exhibits transition from the crystalline to the
amorphous state during irradiation. By interpreting the amorphization kinetics
of SrTiO3, defect overlapping models are discussed as well as latent track
characteristics. Together with a transmission electron microscopy study, we
conclude that a single impact model describes the phase transition mechanism.
|
[{'version': 'v1', 'created': 'Tue, 13 Dec 2011 09:33:00 GMT'}
{'version': 'v2', 'created': 'Fri, 6 Jan 2012 10:18:39 GMT'}]
|
2012-02-02
|
[array(['Grygiel', 'C.', ''], dtype=object)
array(['Lebius', 'H.', ''], dtype=object)
array(['Bouffard', 'S.', ''], dtype=object)
array(['Quentin', 'A.', ''], dtype=object)
array(['Ramillon', 'J. M.', ''], dtype=object)
array(['Madi', 'T.', ''], dtype=object)
array(['Guillous', 'S.', ''], dtype=object)
array(['Been', 'T.', ''], dtype=object)
array(['Guinement', 'P.', ''], dtype=object)
array(['Lelievre', 'D.', ''], dtype=object)
array(['Monnet', 'I.', ''], dtype=object)]
|
6,951 |
1406.6370
|
Tanguy Laffargue
|
Tanguy Laffargue, Peter Sollich, Julien Tailleur, Fr\'ed\'eric van
Wijland
|
Large-scale fluctuations of the largest Lyapunov exponent in diffusive
systems
| null |
Europhys. Lett. 110, 10006 (2015)
|
10.1209/0295-5075/110/10006
| null |
cond-mat.stat-mech nlin.CD
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We present a general formalism for computing the largest Lyapunov exponent
and its fluctuations in spatially extended systems described by diffusive
fluctuating hydrodynamics, thus extending the concepts of dynamical system
theory to a broad range of non-equilibrium systems. Our analytical results
compare favourably with simulations of a lattice model of heat conduction. We
further show how the computation of the Lyapunov exponent for the Symmetric
Simple Exclusion Process relates to damage spreading and to a two-species pair
annihilation process, for which our formalism yields new finite size results.
|
[{'version': 'v1', 'created': 'Tue, 24 Jun 2014 20:00:19 GMT'}
{'version': 'v2', 'created': 'Thu, 2 Apr 2015 13:18:04 GMT'}
{'version': 'v3', 'created': 'Thu, 16 Apr 2015 17:17:50 GMT'}]
|
2015-04-27
|
[array(['Laffargue', 'Tanguy', ''], dtype=object)
array(['Sollich', 'Peter', ''], dtype=object)
array(['Tailleur', 'Julien', ''], dtype=object)
array(['van Wijland', 'Frédéric', ''], dtype=object)]
|
6,952 |
1902.01145
|
Alan Santos Costa
|
Chang-Kang Hu, Alan C. Santos, Jin-Ming Cui, Yun-Feng Huang, D. O.
Soares-Pinto, Marcelo S. Sarandy, Chuan-Feng Li, Guang-Can Guo
|
Quantum thermodynamics in adiabatic open systems and its trapped-ion
experimental realization
|
14 pages and 7 figures
|
npj Quantum Information 6, 73 (2020)
|
10.1038/s41534-020-00300-2
| null |
quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Quantum thermodynamics aims at investigating both the emergence and the
limits of the laws of thermodynamics from a quantum mechanical microscopic
approach. In this scenario, thermodynamic processes with no heat exchange,
namely, adiabatic transformations, can be implemented through quantum
evolutions in closed systems, even though the notion of a closed system is
always an idealization and approximation. Here, we begin by theoretically
discussing thermodynamic adiabatic processes in open quantum systems, which
evolve non-unitarily under decoherence due to its interaction with its
surrounding environment. From a general approach for adiabatic non-unitary
evolution, we establish heat and work in terms of the underlying Liouville
superoperator governing the quantum dynamics. As a consequence, we derive the
conditions that an adiabatic open-system quantum dynamics implies in the
absence of heat exchange, providing a connection between quantum and thermal
adiabaticity. Moreover, we determine families of decohering systems exhibiting
the same maximal heat exchange, which imply in classes of thermodynamic
adiabaticity in open systems. We then approach the problem experimentally using
a hyperfine energy-level quantum bit of an Ytterbium $^{171}$Yb$^+$ trapped
ion, which provides a work substance for thermodynamic processes, allowing for
the analysis of heat and internal energy throughout a controllable engineered
dynamics.
|
[{'version': 'v1', 'created': 'Mon, 4 Feb 2019 12:16:22 GMT'}
{'version': 'v2', 'created': 'Wed, 29 Jul 2020 11:11:03 GMT'}
{'version': 'v3', 'created': 'Wed, 26 Aug 2020 13:41:02 GMT'}]
|
2020-08-27
|
[array(['Hu', 'Chang-Kang', ''], dtype=object)
array(['Santos', 'Alan C.', ''], dtype=object)
array(['Cui', 'Jin-Ming', ''], dtype=object)
array(['Huang', 'Yun-Feng', ''], dtype=object)
array(['Soares-Pinto', 'D. O.', ''], dtype=object)
array(['Sarandy', 'Marcelo S.', ''], dtype=object)
array(['Li', 'Chuan-Feng', ''], dtype=object)
array(['Guo', 'Guang-Can', ''], dtype=object)]
|
6,953 |
2110.12222
|
Gabriele Gionti S.J.
|
Matteo Galaverni and Gabriele Gionti S.J.
|
Jordan and Einstein Frames from the perspective of $\omega=-3/2$
Hamiltonian Brans-Dicke theory
|
corrected some typos, more references added
| null |
10.1103/PhysRevD.105.084008
| null |
gr-qc astro-ph.CO hep-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We carefully perform a Hamiltonian Dirac's constraint analysis of
$\omega=-\frac{3}{2}$ Brans-Dicke theory with Gibbons-Hawking-York (GHY)
boundary term. The Poisson brackets are computed via functional derivatives.
After a brief summary of the results for $\omega\neq-\frac{3}{2}$ case, we
derive all Hamiltonian Dirac's constraints and constraint algebra both in the
Jordan and Einstein frames. Confronting and contrasting Dirac's constraint
algebra in both frames, it is shown that they are not equivalent. This
highlights the transformations from the Jordan to the Einstein frames are not
Hamiltonian canonical transformations.
|
[{'version': 'v1', 'created': 'Sat, 23 Oct 2021 13:58:47 GMT'}
{'version': 'v2', 'created': 'Thu, 11 Nov 2021 19:45:14 GMT'}]
|
2023-06-02
|
[array(['Galaverni', 'Matteo', ''], dtype=object)
array(['J.', 'Gabriele Gionti S.', ''], dtype=object)]
|
6,954 |
1409.7324
|
Martin Monperrus
|
Benoit Baudry (INRIA - IRISA), Martin Monperrus (INRIA Lille - Nord
Europe)
|
The Multiple Facets of Software Diversity: Recent Developments in Year
2000 and Beyond
| null |
ACM Computing Surveys, volume 48, 2015
|
10.1145/2807593
| null |
cs.SE
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Early experiments with software diversity in the mid 1970's investigated
N-version programming and recovery blocks to increase the reliability of
embedded systems. Four decades later, the literature about software diversity
has expanded in multiple directions: goals (fault-tolerance, security, software
engineering); means (managed or automated diversity) and analytical studies
(quantification of diversity and its impact). Our paper contributes to the
field of software diversity as the first paper that adopts an inclusive vision
of the area, with an emphasis on the most recent advances in the field. This
survey includes classical work about design and data diversity for fault
tolerance, as well as the cybersecurity literature that investigates
randomization at different system levels. It broadens this standard scope of
diversity, to include the study and exploitation of natural diversity and the
management of diverse software products. Our survey includes the most recent
works, with an emphasis from 2000 to present. The targeted audience is
researchers and practitioners in one of the surveyed fields, who miss the big
picture of software diversity. Assembling the multiple facets of this
fascinating topic sheds a new light on the field.
|
[{'version': 'v1', 'created': 'Thu, 25 Sep 2014 16:56:55 GMT'}]
|
2019-03-11
|
[array(['Baudry', 'Benoit', '', 'INRIA - IRISA'], dtype=object)
array(['Monperrus', 'Martin', '', 'INRIA Lille - Nord\n Europe'],
dtype=object) ]
|
6,955 |
cond-mat/0408340
|
Dipti Banerjee
|
Dipti Banerjee
|
Edge Current of FQHE and Aharanov-Bhom Type Phase
|
11 pages
|
Physica Scripta (2005), vol-71, page 1-5
| null | null |
cond-mat.mes-hall
| null |
When two non-identical quasi-particles in the Hall fluid encircle each other,
relative AB type phase developes.As the quasi-particles advance towards the
edge in a similar circular way, the developed current should have connection
with this AB type phase through the {\it Shift} quantum number or Berry's
topological phase. We have pointed out the role of relative AB type statistical
phase in the development of edge current.In fact,the physics of the current
flow in FQHE is sketched here from the topological point of phase
transformation.
|
[{'version': 'v1', 'created': 'Sun, 15 Aug 2004 15:15:04 GMT'}]
|
2010-06-21
|
[array(['Banerjee', 'Dipti', ''], dtype=object)]
|
6,956 |
0804.1711
|
Lucie Baudouin
|
Lucie Baudouin (LAAS), Julien Salomon (CEREMADE)
|
Constructive solution of a bilinear optimal control problem for a
Schr\"odinger equation
| null |
Systems & Control Letters / Systems and Control Letters (2008) 150
| null | null |
math.AP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Often considered in numerical simulations related to the control of quantum
systems, the so-called monotonic schemes have not been so far much studied from
the functional analysis point of view. Yet, these procedures provide an
efficient constructive method for solving a certain class of optimal control
problems. This paper aims both at extending the results already available about
these algorithms in the finite dimensional case (i.e., the time-discretized
case) and at completing those of the continuous case. This paper starts with
some results about the regularity of a functional related to a wide class of
model in quantum chemistry. Those enable us to extend an inequality due to
|
[{'version': 'v1', 'created': 'Thu, 10 Apr 2008 14:02:23 GMT'}]
|
2008-12-18
|
[array(['Baudouin', 'Lucie', '', 'LAAS'], dtype=object)
array(['Salomon', 'Julien', '', 'CEREMADE'], dtype=object)]
|
6,957 |
0707.0853
|
Craig J. Sutton
|
Carolyn S. Gordon and Craig J. Sutton
|
Spectral isolation of naturally reductive metrics on simple Lie groups
|
19 pages, new title and abstract, revised introduction, new result
demonstrating that any collection of isospectral compact symmetric spaces
must be finite, to appear Math Z. (published online Dec. 2009)
| null |
10.1007/s00209-009-0640-6
| null |
math.DG math.SP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We show that within the class of left-invariant naturally reductive metrics
$\mathcal{M}_{\operatorname{Nat}}(G)$ on a compact simple Lie group $G$, every
metric is spectrally isolated. We also observe that any collection of
isospectral compact symmetric spaces is finite; this follows from a somewhat
stronger statement involving only a finite part of the spectrum.
|
[{'version': 'v1', 'created': 'Thu, 5 Jul 2007 19:17:14 GMT'}
{'version': 'v2', 'created': 'Mon, 28 Jun 2010 19:17:13 GMT'}]
|
2010-06-29
|
[array(['Gordon', 'Carolyn S.', ''], dtype=object)
array(['Sutton', 'Craig J.', ''], dtype=object)]
|
6,958 |
2004.12008
|
Muhammad Waseem
|
Muhammad Waseem, Muhammad Nehal Khan and Shahid Qamar
|
Dynamics and multiqubit entanglement in distant resonators
|
11 pages, 8 figures, accepted
|
Phys. Scr. 95 065103 (2020)
|
10.1088/1402-4896/ab894f
| null |
quant-ph cond-mat.supr-con physics.atom-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We consider the dynamics of the photon states in distant resonators coupled
to a common bus resonator at different positions. The frequencies of distant
resonators from a common bus resonator are equally detuned. These frequency
detunings are kept larger than the coupling strengths of each resonator to the
common bus resonator to satisfy the dispersive interaction regime. In the
dispersive regime, we show that the time dynamics of the system evolve to an
arbitrary W-type state in a single step at various interaction times. Our
results show that a one-step generation of arbitrary W-type states can be
achieved with high fidelity in a system of superconducting resonators.
|
[{'version': 'v1', 'created': 'Fri, 24 Apr 2020 22:12:21 GMT'}]
|
2020-06-02
|
[array(['Waseem', 'Muhammad', ''], dtype=object)
array(['Khan', 'Muhammad Nehal', ''], dtype=object)
array(['Qamar', 'Shahid', ''], dtype=object)]
|
6,959 |
1901.03735
|
Aakanksha Naik
|
Abhilasha Ravichander, Aakanksha Naik, Carolyn Rose, Eduard Hovy
|
EQUATE: A Benchmark Evaluation Framework for Quantitative Reasoning in
Natural Language Inference
|
To appear at CoNLL 2019
| null | null | null |
cs.CL
|
http://creativecommons.org/licenses/by-sa/4.0/
|
Quantitative reasoning is a higher-order reasoning skill that any intelligent
natural language understanding system can reasonably be expected to handle. We
present EQUATE (Evaluating Quantitative Understanding Aptitude in Textual
Entailment), a new framework for quantitative reasoning in textual entailment.
We benchmark the performance of 9 published NLI models on EQUATE, and find that
on average, state-of-the-art methods do not achieve an absolute improvement
over a majority-class baseline, suggesting that they do not implicitly learn to
reason with quantities. We establish a new baseline Q-REAS that manipulates
quantities symbolically. In comparison to the best performing NLI model, it
achieves success on numerical reasoning tests (+24.2%), but has limited verbal
reasoning capabilities (-8.1%). We hope our evaluation framework will support
the development of models of quantitative reasoning in language understanding.
|
[{'version': 'v1', 'created': 'Fri, 11 Jan 2019 20:27:25 GMT'}
{'version': 'v2', 'created': 'Sun, 27 Oct 2019 03:38:23 GMT'}]
|
2019-10-29
|
[array(['Ravichander', 'Abhilasha', ''], dtype=object)
array(['Naik', 'Aakanksha', ''], dtype=object)
array(['Rose', 'Carolyn', ''], dtype=object)
array(['Hovy', 'Eduard', ''], dtype=object)]
|
6,960 |
1306.5760
|
Claude Warnick
|
Claude M. Warnick
|
On quasinormal modes of asymptotically anti-de Sitter black holes
|
81 pages, 6 figures. V3: To appear in Comm. Math. Phys
| null |
10.1007/s00220-014-2171-1
|
ALBERTA THY 3-13
|
gr-qc
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We consider the problem of quasinormal modes (QNM) for strongly hyperbolic
systems on stationary, asymptotically anti-de Sitter black holes, with very
general boundary conditions at infinity. We argue that for a time slicing
regular at the horizon the QNM should be identified with certain H^k
eigenvalues of the infinitesimal generator of the solution semigroup. Using
this definition we are able to prove directly that the quasinormal frequencies
form a discrete, countable subset of the complex plane, which in the globally
stationary case accumulates only at infinity. We avoid any need for meromorphic
extension, and the quasinormal modes are honest eigenfunctions of an operator
on a Hilbert space. Our results apply to any of the linear fields usually
considered (Klein-Gordon, Maxwell, Dirac etc.) on a stationary black hole
background, and do not rely on any separability or analyticity properties of
the metric. Our methods and results largely extend to the locally stationary
case. We provide a counter-example to the conjecture that quasinormal modes are
complete. We relate our approach directly to the approach via meromorphic
continuation.
|
[{'version': 'v1', 'created': 'Mon, 24 Jun 2013 20:01:58 GMT'}
{'version': 'v2', 'created': 'Wed, 11 Sep 2013 14:01:15 GMT'}
{'version': 'v3', 'created': 'Mon, 28 Jul 2014 09:38:34 GMT'}]
|
2015-06-16
|
[array(['Warnick', 'Claude M.', ''], dtype=object)]
|
6,961 |
1703.10862
|
Patrick Rein
|
Toni Mattis (Hasso Plattner Institute, Germany), Patrick Rein (Hasso
Plattner Institute, Germany), Robert Hirschfeld (Hasso Plattner Institute,
Germany)
|
Edit Transactions: Dynamically Scoped Change Sets for Controlled Updates
in Live Programming
| null |
The Art, Science, and Engineering of Programming, 2017, Vol. 1,
Issue 2, Article 13
|
10.22152/programming-journal.org/2017/1/13
| null |
cs.SE cs.PL
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Live programming environments enable programmers to edit a running program
and obtain immediate feedback on each individual change. The liveness quality
is valued by programmers to help work in small steps and continuously add or
correct small functionality while maintaining the impression of a direct
connection between each edit and its manifestation at run-time. Such immediacy
may conflict with the desire to perform a combined set of intermediate steps,
such as a refactoring, without immediately taking effect after each individual
edit. This becomes important when an incomplete sequence of small-scale changes
can easily break the running program. State-of-the-art solutions focus on
retroactive recovery mechanisms, such as debugging or version control. In
contrast, we propose a proactive approach: Multiple individual changes to the
program are collected in an Edit Transaction, which can be made effective if
deemed complete. Upon activation, the combined steps become visible together.
Edit Transactions are capable of dynamic scoping, allowing a set of changes to
be tested in isolation before being extended to the running application. This
enables a live programming workflow with full control over change granularity,
immediate feedback on tests, delayed effect on the running application, and
coarse-grained undos. We present an implementation of Edit Transactions along
with Edit-Transaction-aware tools in Squeak/Smalltalk. We asses this
implementation by conducting a case study with and without the new tool
support, comparing programming activities, errors, and detours for implementing
new functionality in a running simulation. We conclude that workflows using
Edit Transactions have the potential to increase confidence in a change, reduce
potential for run-time errors, and eventually make live programming more
predictable and engaging.
|
[{'version': 'v1', 'created': 'Fri, 31 Mar 2017 11:46:52 GMT'}
{'version': 'v2', 'created': 'Mon, 3 Apr 2017 21:39:46 GMT'}]
|
2017-04-05
|
[array(['Mattis', 'Toni', '', 'Hasso Plattner Institute, Germany'],
dtype=object)
array(['Rein', 'Patrick', '', 'Hasso\n Plattner Institute, Germany'],
dtype=object)
array(['Hirschfeld', 'Robert', '', 'Hasso Plattner Institute,\n Germany'],
dtype=object) ]
|
6,962 |
hep-ph/9907478
|
James Pantaleone
|
James Pantaleone, T.K. Kuo and Sadek Mansour
|
Constraints on Exotic Mixing of Three Neutrinos
|
27 pages, 4 figures
|
Phys.Rev.D61:033011,2000
|
10.1103/PhysRevD.61.033011
| null |
hep-ph
| null |
Exotic explanations are considered for atmospheric neutrino observations. Our
analysis includes matter effects and the mixing of all three neutrinos under
the simplifying assumption of only one relevant mixing scale. Constraints from
accelerator, reactor and solar neutrinos are included. We find that the
proposed mixing mechanisms based on violations of Lorentz invariance or on
violations of the equivalence principle cannot explain the recent observations
of atmospheric neutrino mixing. However the data still allow a wide range of
energy dependences for the vacuum mixing scale, and also allow large
electron-neutrino mixing of atmospheric neutrinos. Next generation long
baseline experiments will constrain these possibilities.
|
[{'version': 'v1', 'created': 'Fri, 23 Jul 1999 21:00:14 GMT'}]
|
2014-11-17
|
[array(['Pantaleone', 'James', ''], dtype=object)
array(['Kuo', 'T. K.', ''], dtype=object)
array(['Mansour', 'Sadek', ''], dtype=object)]
|
6,963 |
2203.17112
|
Sohil Lal Shrestha
|
Sohil Lal Shrestha, Shafiul Azam Chowdhury and Christoph Csallner
|
SLNET: A Redistributable Corpus of 3rd-party Simulink Models
|
Published in Mining Software Repositories 2022 - Data and Tool
Showcase Track
| null |
10.1145/3524842.3528001
| null |
cs.SE
|
http://creativecommons.org/licenses/by/4.0/
|
MATLAB/Simulink is widely used for model-based design. Engineers create
Simulink models and compile them to embedded code, often to control
safety-critical cyber-physical systems in automotive, aerospace, and healthcare
applications. Despite Simulink's importance, there are few large-scale
empirical Simulink studies, perhaps because there is no large readily available
corpus of third-party open-source Simulink models. To enable empirical Simulink
studies, this paper introduces SLNET, the largest corpus of freely available
third-party Simulink models. SLNET has several advantages over earlier
collections. Specifically, SLNET is 8 times larger than the largest previous
corpus of Simulink models, includes fine-grained metadata, is constructed
automatically, is self-contained, and allows redistribution. SLNET is available
under permissive open-source licenses and contains all of its collection and
analysis tools.
|
[{'version': 'v1', 'created': 'Thu, 31 Mar 2022 15:33:39 GMT'}]
|
2022-04-01
|
[array(['Shrestha', 'Sohil Lal', ''], dtype=object)
array(['Chowdhury', 'Shafiul Azam', ''], dtype=object)
array(['Csallner', 'Christoph', ''], dtype=object)]
|
6,964 |
1308.1486
|
Emmanuel Fromager
|
Alexandrina Stoyanova, Andrew M. Teale, Julien Toulouse, Trygve
Helgaker, and Emmanuel Fromager
|
Alternative separation of exchange and correlation energies in
multi-configuration range-separated density-functional theory
|
5 figures
|
J. Chem. Phys. 139, 134113 (2013)
|
10.1063/1.4822135
| null |
physics.chem-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The alternative separation of exchange and correlation energies proposed by
Toulouse et al. [Theor. Chem. Acc. 114, 305 (2005)] is explored in the context
of multi-configuration range-separated density-functional theory. The new
decomposition of the short-range exchange-correlation energy relies on the
auxiliary long-range interacting wavefunction rather than the Kohn-Sham (KS)
determinant. The advantage, relative to the traditional KS decomposition, is
that the wavefunction part of the energy is now computed with the regular
(fully-interacting) Hamiltonian. One potential drawback is that, because of
double counting, the wavefunction used to compute the energy cannot be obtained
by minimizing the energy expression with respect to the wavefunction
parameters. The problem is overcome by using short-range optimized effective
potentials (OEPs). The resulting combination of OEP techniques with
wavefunction theory has been investigated in this work, at the Hartree-Fock
(HF) and multi-configuration self-consistent-field (MCSCF) levels. In the HF
case, an analytical expression for the energy gradient has been derived and
implemented. Calculations have been performed within the short-range local
density approximation on H2, N2, Li2 and H2O. Significant improvements in
binding energies are obtained with the new decomposition of the short-range
energy. The importance of optimizing the short-range OEP at the MCSCF level
when static correlation becomes significant has also been demonstrated for H2,
using a finite-difference gradient. The implementation of the analytical
gradient for MCSCF wavefunctions is currently in progress.
|
[{'version': 'v1', 'created': 'Wed, 7 Aug 2013 06:11:28 GMT'}
{'version': 'v2', 'created': 'Wed, 11 Sep 2013 10:19:41 GMT'}]
|
2013-10-04
|
[array(['Stoyanova', 'Alexandrina', ''], dtype=object)
array(['Teale', 'Andrew M.', ''], dtype=object)
array(['Toulouse', 'Julien', ''], dtype=object)
array(['Helgaker', 'Trygve', ''], dtype=object)
array(['Fromager', 'Emmanuel', ''], dtype=object)]
|
6,965 |
astro-ph/0502468
|
Edo Berger
|
E. Berger, D. B. Fox, S. R. Kulkarni, W. Krzeminski, A. M. Soderberg,
D. A. Frail, D. N. Burrows, S. B. Cenko, E. J. Murphy, P. A. Price, A.
Gal-Yam, D.-S. Moon, N. Gehrels, W. L. Freedman, S. E. Persson, S. Barthelmy,
J. E. Hill, J. A. Nousek, A. Moretti
|
The Discovery of the Optical and Near-IR Afterglows of the First Swift
Gamma-Ray Bursts
|
Submitted to ApJ; 13 pages, 6 figures, 2 tables
|
Astrophys.J.629:328-333,2005
|
10.1086/431579
| null |
astro-ph
| null |
We present optical and near-infrared searches for afterglow emission from the
first four Swift bursts with accurate positions from the X-ray Telescope (XRT).
Using telescopes at Las Campanas, Keck, and Palomar observatories we rapidly
identified and followed up afterglows for three of the four bursts. The burst
positions were also observed with the Very Large Array, but no radio afterglow
emission was detected. The optical/NIR afterglows are fainter than about 75% of
all afterglows detected to date, with GRB 050126 being the faintest, and were
identified thanks to accurate and rapid positions from the XRT and rapid
response with >1-m telescopes. This suggests that the fraction of dust-obscured
bursts is small, <10% when combined with afterglows localized by the HETE-2
Soft X-ray Camera. The X-ray fluxes are typical of the known population, with
the exception of GRB 050126 which has the faintest X-ray afterglow to date
(normalized to t=10 hr), and was detected thanks to a response time of only 130
s after the burst. Finally, we find that all three optical/NIR afterglows are
located <2 arcsec away from the nominal XRT positions, suggesting that the XRT
is capable of delivering highly accurate positions, which will revolutionize
afterglow studies.
|
[{'version': 'v1', 'created': 'Wed, 23 Feb 2005 02:08:14 GMT'}]
|
2010-05-12
|
[array(['Berger', 'E.', ''], dtype=object)
array(['Fox', 'D. B.', ''], dtype=object)
array(['Kulkarni', 'S. R.', ''], dtype=object)
array(['Krzeminski', 'W.', ''], dtype=object)
array(['Soderberg', 'A. M.', ''], dtype=object)
array(['Frail', 'D. A.', ''], dtype=object)
array(['Burrows', 'D. N.', ''], dtype=object)
array(['Cenko', 'S. B.', ''], dtype=object)
array(['Murphy', 'E. J.', ''], dtype=object)
array(['Price', 'P. A.', ''], dtype=object)
array(['Gal-Yam', 'A.', ''], dtype=object)
array(['Moon', 'D. -S.', ''], dtype=object)
array(['Gehrels', 'N.', ''], dtype=object)
array(['Freedman', 'W. L.', ''], dtype=object)
array(['Persson', 'S. E.', ''], dtype=object)
array(['Barthelmy', 'S.', ''], dtype=object)
array(['Hill', 'J. E.', ''], dtype=object)
array(['Nousek', 'J. A.', ''], dtype=object)
array(['Moretti', 'A.', ''], dtype=object)]
|
6,966 |
1407.3884
|
Ioannis Keramidas Charidakos Mr.
|
I.Keramidas Charidakos, M.Lingam, P.J.Morrison, R.L.White, A. Wurm
|
Action Principles for Extended MHD Models
|
13 pages
| null |
10.1063/1.4896336
| null |
physics.plasm-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The general, non-dissipative, two-fluid model in plasma physics is
Hamiltonian, but this property is sometimes lost or obscured in the process of
deriving simplified (or reduced) two-fluid or one-fluid models from the
two-fluid equations of motion. To ensure that the reduced models are
Hamiltonian, we start with the general two-fluid action functional, and make
all the approximations, changes of variables, and expansions directly within
the action context. The resulting equations are then mapped to the Eulerian
fluid variables using a novel nonlocal Lagrange-Euler map. Using this method,
we recover L\"{u}st's general two-fluid model, extended MHD, Hall MHD, and
electron MHD from a unified framework. The variational formulation allows us to
use Noether's theorem to derive conserved quantities for each symmetry of the
action.
|
[{'version': 'v1', 'created': 'Tue, 15 Jul 2014 05:44:38 GMT'}]
|
2015-06-22
|
[array(['Charidakos', 'I. Keramidas', ''], dtype=object)
array(['Lingam', 'M.', ''], dtype=object)
array(['Morrison', 'P. J.', ''], dtype=object)
array(['White', 'R. L.', ''], dtype=object)
array(['Wurm', 'A.', ''], dtype=object)]
|
6,967 |
2110.13880
|
Mo Yu
|
Mo Yu, Yang Zhang, Shiyu Chang, Tommi S. Jaakkola
|
Understanding Interlocking Dynamics of Cooperative Rationalization
|
Accepted at NeurIPS 2021
| null | null | null |
cs.LG cs.AI cs.CL
|
http://creativecommons.org/licenses/by/4.0/
|
Selective rationalization explains the prediction of complex neural networks
by finding a small subset of the input that is sufficient to predict the neural
model output. The selection mechanism is commonly integrated into the model
itself by specifying a two-component cascaded system consisting of a rationale
generator, which makes a binary selection of the input features (which is the
rationale), and a predictor, which predicts the output based only on the
selected features. The components are trained jointly to optimize prediction
performance. In this paper, we reveal a major problem with such cooperative
rationalization paradigm -- model interlocking. Interlocking arises when the
predictor overfits to the features selected by the generator thus reinforcing
the generator's selection even if the selected rationales are sub-optimal. The
fundamental cause of the interlocking problem is that the rationalization
objective to be minimized is concave with respect to the generator's selection
policy. We propose a new rationalization framework, called A2R, which
introduces a third component into the architecture, a predictor driven by soft
attention as opposed to selection. The generator now realizes both soft and
hard attention over the features and these are fed into the two different
predictors. While the generator still seeks to support the original predictor
performance, it also minimizes a gap between the two predictors. As we will
show theoretically, since the attention-based predictor exhibits a better
convexity property, A2R can overcome the concavity barrier. Our experiments on
two synthetic benchmarks and two real datasets demonstrate that A2R can
significantly alleviate the interlock problem and find explanations that better
align with human judgments. We release our code at
https://github.com/Gorov/Understanding_Interlocking.
|
[{'version': 'v1', 'created': 'Tue, 26 Oct 2021 17:39:18 GMT'}]
|
2021-10-27
|
[array(['Yu', 'Mo', ''], dtype=object)
array(['Zhang', 'Yang', ''], dtype=object)
array(['Chang', 'Shiyu', ''], dtype=object)
array(['Jaakkola', 'Tommi S.', ''], dtype=object)]
|
6,968 |
cond-mat/0403191
|
Kamran Vakili
|
K. Vakili, Y. P. Shkolnikov, E. Tutuc, E. P. De Poortere, M. Shayegan
|
Spin susceptibility of two-dimensional electrons in narrow AlAs quantum
wells
|
4+ pages, 4 figures. Dotted line added to Fig. 4(a) to clarify the
QMC calculation
|
Phys. Rev. Lett. 92, 226401 (2004)
|
10.1103/PhysRevLett.92.226401
| null |
cond-mat.mes-hall cond-mat.str-el
| null |
We report measurements of the spin susceptibility in dilute two-dimensional
electrons confined to a 45$\AA$ wide AlAs quantum well. The electrons in this
well occupy an out-of-plane conduction-band valley, rendering a system similar
to two-dimensional electrons in Si-MOSFETs but with only one valley occupied.
We observe an enhancement of the spin susceptibility over the band value that
increases as the density is decreased, following closely the prediction of
quantum Monte Carlo calculations and continuing at finite values through the
metal-insulator transition.
|
[{'version': 'v1', 'created': 'Sun, 7 Mar 2004 01:24:37 GMT'}
{'version': 'v2', 'created': 'Tue, 16 Mar 2004 23:09:26 GMT'}]
|
2009-11-10
|
[array(['Vakili', 'K.', ''], dtype=object)
array(['Shkolnikov', 'Y. P.', ''], dtype=object)
array(['Tutuc', 'E.', ''], dtype=object)
array(['De Poortere', 'E. P.', ''], dtype=object)
array(['Shayegan', 'M.', ''], dtype=object)]
|
6,969 |
1502.05442
|
Frederi Viens
|
Archil Gulisashvili, Frederi Viens, Xin Zhang
|
Extreme-Strike Asymptotics for General Gaussian Stochastic Volatility
Models
|
38 pages, 12 figures
| null | null | null |
q-fin.MF
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We consider a stochastic volatility asset price model in which the volatility
is the absolute value of a continuous Gaussian process with arbitrary
prescribed mean and covariance. By exhibiting a Karhunen-Lo\`{e}ve expansion
for the integrated variance, and using sharp estimates of the density of a
general second-chaos variable, we derive asymptotics for the asset price
density for large or small values of the variable, and study the wing behavior
of the implied volatility in these models. Our main result provides explicit
expressions for the first five terms in the expansion of the implied
volatility. The expressions for the leading three terms are simple, and based
on three basic spectral-type statistics of the Gaussian process: the top
eigenvalue of its covariance operator, the multiplicity of this eigenvalue, and
the $L^{2}$ norm of the projection of the mean function on the top eigenspace.
The fourth term requires knowledge of all eigen-elements. We present detailed
numerics based on realistic liquidity assumptions in which classical and
long-memory volatility models are calibrated based on our expansion.
|
[{'version': 'v1', 'created': 'Wed, 18 Feb 2015 23:31:49 GMT'}
{'version': 'v2', 'created': 'Thu, 18 Jun 2015 14:40:59 GMT'}
{'version': 'v3', 'created': 'Tue, 7 Feb 2017 03:10:05 GMT'}]
|
2017-02-08
|
[array(['Gulisashvili', 'Archil', ''], dtype=object)
array(['Viens', 'Frederi', ''], dtype=object)
array(['Zhang', 'Xin', ''], dtype=object)]
|
6,970 |
2203.03785
|
Wynn Jacobson-Galan
|
Wynn Jacobson-Gal\'an, Padma Venkatraman, Raffaella Margutti, David
Khatami, Giacomo Terreran, Ryan J. Foley, Rodrigo Angulo, Charlotte R. Angus,
Katie Auchettl, Peter K. Blanchard, Alexey Bobrick, Joe S. Bright, Cirilla D.
Couch, David A. Coulter, Karoli Clever, Kyle W. Davis, Thomas de Boer,
Lindsay DeMarchi, Sierra A. Dodd, David O. Jones, Jessica Johnson, Charles D.
Kilpatrick, Nandita Khetan, Zhisen Lai, Danial Langeroodi, Chien-Cheng Lin,
Eugene A. Magnier, Dan Milisavljevic, Hagai B. Perets, Justin D. R. Pierel,
John Raymond, Sofia Rest, Armin Rest, Ryan Ridden-Harper, Ken J. Shen,
Matthew R. Siebert, Carli Smith, Kirsty Taggart, Samaporn Tinyanont, Frank
Valdes, Victoria A. Villar, Qinan Wang, S. Karthik Yadavalli, Yossef Zenati,
Alfredo Zenteno
|
The Circumstellar Environments of Double-Peaked, Calcium-strong
Supernovae 2021gno and 2021inl
|
33 pages, 19 figures. Submitted to ApJ. Comments welcome!
| null |
10.3847/1538-4357/ac67dc
| null |
astro-ph.HE astro-ph.SR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We present panchromatic observations and modeling of calcium-strong
supernovae (SNe) 2021gno in the star-forming host galaxy NGC 4165 (D = 30.5
Mpc) and 2021inl in the outskirts of elliptical galaxy NGC 4923 (D = 80 Mpc),
both monitored through the Young Supernova Experiment (YSE) transient survey.
The multi-color light curves of both SNe show two peaks, the former peak being
derived from shock cooling emission (SCE) and/or shock interaction with
circumstellar material (CSM). The primary peak in SN 2021gno is coincident with
luminous, rapidly decaying X-ray emission ($L_x = 5 \times 10^{41}$ erg
s$^{-1}$) detected by Swift-XRT at $\delta t = 1$ day after explosion, this
observation being the second ever detection of X-rays from a calcium-strong
transient. We interpret the X-ray emission from SN 2021gno in the context of
shock interaction with dense CSM that extends to $r < 3 \times 10^{14}$ cm.
Based on modeling of the SN 2021gno X-ray spectrum, we calculate a CSM mass
range of $M_{\rm CSM} = (0.3 - 1.6) \times 10^{-3}$ M$_{\odot}$ and particle
densities of $n = (1-4) \times 10^{10}$ cm$^{-3}$. Radio non-detections of SN
2021gno indicate a low-density environment at larger radii ($r > 10^{16}$ cm)
and a progenitor mass loss rate of $\dot{M} < 10^{-4}$ M$_{\odot}$ yr$^{-1}$,
for $v_w = 500$ km s$^{-1}$. For radiation derived from SCE, modeling of the
primary light curve peak in both SNe indicates an extended progenitor envelope
mass and radius of $M_e = 0.02 - 0.05$ M$_{\odot}$ and $R_e = 30 - 230$
R$_{\odot}$. The explosion properties of SNe 2021gno and 2021inl suggest
progenitor systems containing either a low-mass massive star or a white dwarf
(WD), the former being unlikely for either object given the lack of star
formation at both explosion sites. Furthermore, the progenitor environments of
both SNe are consistent with explosion models for low-mass hybrid He/C/O WD +
C/O WD binaries.
|
[{'version': 'v1', 'created': 'Tue, 8 Mar 2022 00:46:45 GMT'}]
|
2022-09-28
|
[array(['Jacobson-Galán', 'Wynn', ''], dtype=object)
array(['Venkatraman', 'Padma', ''], dtype=object)
array(['Margutti', 'Raffaella', ''], dtype=object)
array(['Khatami', 'David', ''], dtype=object)
array(['Terreran', 'Giacomo', ''], dtype=object)
array(['Foley', 'Ryan J.', ''], dtype=object)
array(['Angulo', 'Rodrigo', ''], dtype=object)
array(['Angus', 'Charlotte R.', ''], dtype=object)
array(['Auchettl', 'Katie', ''], dtype=object)
array(['Blanchard', 'Peter K.', ''], dtype=object)
array(['Bobrick', 'Alexey', ''], dtype=object)
array(['Bright', 'Joe S.', ''], dtype=object)
array(['Couch', 'Cirilla D.', ''], dtype=object)
array(['Coulter', 'David A.', ''], dtype=object)
array(['Clever', 'Karoli', ''], dtype=object)
array(['Davis', 'Kyle W.', ''], dtype=object)
array(['de Boer', 'Thomas', ''], dtype=object)
array(['DeMarchi', 'Lindsay', ''], dtype=object)
array(['Dodd', 'Sierra A.', ''], dtype=object)
array(['Jones', 'David O.', ''], dtype=object)
array(['Johnson', 'Jessica', ''], dtype=object)
array(['Kilpatrick', 'Charles D.', ''], dtype=object)
array(['Khetan', 'Nandita', ''], dtype=object)
array(['Lai', 'Zhisen', ''], dtype=object)
array(['Langeroodi', 'Danial', ''], dtype=object)
array(['Lin', 'Chien-Cheng', ''], dtype=object)
array(['Magnier', 'Eugene A.', ''], dtype=object)
array(['Milisavljevic', 'Dan', ''], dtype=object)
array(['Perets', 'Hagai B.', ''], dtype=object)
array(['Pierel', 'Justin D. R.', ''], dtype=object)
array(['Raymond', 'John', ''], dtype=object)
array(['Rest', 'Sofia', ''], dtype=object)
array(['Rest', 'Armin', ''], dtype=object)
array(['Ridden-Harper', 'Ryan', ''], dtype=object)
array(['Shen', 'Ken J.', ''], dtype=object)
array(['Siebert', 'Matthew R.', ''], dtype=object)
array(['Smith', 'Carli', ''], dtype=object)
array(['Taggart', 'Kirsty', ''], dtype=object)
array(['Tinyanont', 'Samaporn', ''], dtype=object)
array(['Valdes', 'Frank', ''], dtype=object)
array(['Villar', 'Victoria A.', ''], dtype=object)
array(['Wang', 'Qinan', ''], dtype=object)
array(['Yadavalli', 'S. Karthik', ''], dtype=object)
array(['Zenati', 'Yossef', ''], dtype=object)
array(['Zenteno', 'Alfredo', ''], dtype=object)]
|
6,971 |
2011.12331
|
Marvin L\"uben
|
Marvin L\"uben, Dieter Lust, Ariadna Ribes Metidieri
|
The Black Hole Entropy Distance Conjecture and Black Hole Evaporation
|
references added
| null |
10.1002/prop.202000130
|
LMU-ASC 46/20, MPP-2020-210
|
hep-th gr-qc
|
http://creativecommons.org/licenses/by/4.0/
|
We extend the recently proposed Black Hole Entropy Distance Conjecture to the
case of charged black holes in de Sitter space. By systematically studying
distances in the space of black hole geometries with multiple horizons, we find
that the distance is generically related to the logarithm of the entropy. From
the infinite distance conjecture this predicts the appearance of a massless
tower of modes in the limit of infinite entropy. Further, we study the
evaporation of these black holes and relate it to the geometric distance. We
find that the corresponding distance to the final stage of evaporation is
finite. We conclude that evaporation does not lead to the appearance of a light
tower of black hole microstates.
|
[{'version': 'v1', 'created': 'Tue, 24 Nov 2020 19:12:09 GMT'}
{'version': 'v2', 'created': 'Wed, 16 Dec 2020 19:39:06 GMT'}]
|
2021-04-07
|
[array(['Lüben', 'Marvin', ''], dtype=object)
array(['Lust', 'Dieter', ''], dtype=object)
array(['Metidieri', 'Ariadna Ribes', ''], dtype=object)]
|
6,972 |
0709.3546
|
Ashvin Vishwanath
|
Fa Wang, Ashvin Vishwanath
|
Spin phonon induced colinear order and magnetization plateaus in
triangular and kagome antiferromagnets. Applications to CuFeO_2
|
5 pages, 4 figures
|
Phys. Rev. Lett. 100, 077201 (2008)
|
10.1103/PhysRevLett.100.077201
| null |
cond-mat.str-el cond-mat.mtrl-sci
| null |
Coupling between spin and lattice degrees of freedom are important in
geometrically frustrated magnets where they can lead to degeneracy lifting and
novel orders. We show that moderate spin-lattice couplings in triangular and
Kagome antiferromagnets can induce complex colinear magnetic orders. When
classical Heisenberg spins on the triangular lattice are coupled to Einstein
phonons, a rich variety of phases emerge, including the experimentally observed
four sublattice state and the five sublattice 1/5th plateau state seen in the
magneto-electric material CuFeO$_2$. In addition we predict magnetization
plateaus at 1/3, 3/7, 1/2, 3/5 and 5/7 at these couplings. Strong spin-lattice
couplings induce a striped colinear state, seen in $\alpha$-NaFeO$_2$ and
MnBr$_2$. On the Kagome lattice, moderate spin-lattice couplings induce
colinear order, but an extensive degeneracy remains.
|
[{'version': 'v1', 'created': 'Mon, 24 Sep 2007 06:21:50 GMT'}]
|
2008-02-20
|
[array(['Wang', 'Fa', ''], dtype=object)
array(['Vishwanath', 'Ashvin', ''], dtype=object)]
|
6,973 |
2204.10056
|
Meysam Bagheri Tagani
|
Mohammad Ali Mohebpour, Bohayra Mortazavi, Xiaoying Zhuang, and Meysam
Bagheri Tagani
|
Optoelectronic properties of the CuI, AgI and Janus Cu2BrI, and Ag2BrI
monolayers by many-body perturbation theory
|
10 pages, 8 figures
| null |
10.1103/PhysRevB.106.125405
| null |
cond-mat.mtrl-sci cond-mat.mes-hall
|
http://creativecommons.org/licenses/by/4.0/
|
In an outstanding experimental advance in the field of two-dimensional
nanomaterials, cuprous iodide (CuI) and silver iodide (AgI) monolayers have
been grown via a novel graphene encapsulation synthesis approach
[Adv.Mater.2022, 34, 2106922]. Inspired by this accomplishment, we conduct
first-principles calculations to investigate the elastic, phononic thermal
transport, electronic, and optical properties of the native CuI and AgI and
Janus Cu2BrI and Ag2BrI monolayers. Electronic and excitonic optical properties
are elaborately studied using the many-body perturbation theory on the basis of
GW approximation. Our results indicate that these novel systems are stable but
with soft elastic modulus and ultralow lattice thermal conductivity. It is also
shown that the studied monolayers are wide-gap semiconductors with exciton
binding energies close to 1 eV. The effects of mechanical straining and
electric field on the resulting electronic and optical properties are also
analyzed. The presented first-principles results provide a deep understanding
of the stability, phononic transport, and tunable optoelectronic properties of
the native CuI and AgI and Janus Cu2BrI and Ag2BrI monolayers, which can serve
as a guide for the oncoming studies.
|
[{'version': 'v1', 'created': 'Thu, 21 Apr 2022 12:41:45 GMT'}]
|
2022-09-21
|
[array(['Mohebpour', 'Mohammad Ali', ''], dtype=object)
array(['Mortazavi', 'Bohayra', ''], dtype=object)
array(['Zhuang', 'Xiaoying', ''], dtype=object)
array(['Tagani', 'Meysam Bagheri', ''], dtype=object)]
|
6,974 |
1906.02408
|
Arindam Bose
|
Aria Ameri, Arindam Bose, Mojtaba Soltanalian
|
Comprehensive Personalized Ranking Using One-Bit Comparison Data
|
2019 IEEE Data Science Workshop
| null |
10.1109/DSW.2019.8755595
| null |
cs.IR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The task of a personalization system is to recommend items or a set of items
according to the users' taste, and thus predicting their future needs. In this
paper, we address such personalized recommendation problems for which one-bit
comparison data of user preferences for different items as well as the
different user inclinations toward an item are available. We devise a
comprehensive personalized ranking (CPR) system by employing a Bayesian
treatment. We also provide a connection to the learning method with respect to
the CPR optimization criterion to learn the underlying low-rank structure of
the rating matrix based on the well-established matrix factorization method.
Numerical results are provided to verify the performance of our algorithm.
|
[{'version': 'v1', 'created': 'Thu, 6 Jun 2019 04:14:44 GMT'}]
|
2022-08-10
|
[array(['Ameri', 'Aria', ''], dtype=object)
array(['Bose', 'Arindam', ''], dtype=object)
array(['Soltanalian', 'Mojtaba', ''], dtype=object)]
|
6,975 |
0808.2319
|
George Lowther
|
George Lowther
|
Fitting Martingales To Given Marginals
|
26 pages, 1 figure
| null | null | null |
math.PR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We consider the problem of finding a real valued martingale fitting specified
marginal distributions. For this to be possible, the marginals must be
increasing in the convex order and have constant mean. We show that, under the
extra condition that they are weakly continuous, the marginals can always be
fitted in a unique way by a martingale which lies in a particular class of
strong Markov processes.
It is also shown that the map that this gives from the sets of marginal
distributions to the martingale measures is continuous. Furthermore, we prove
that it is the unique continuous method of fitting martingale measures to the
marginal distributions.
|
[{'version': 'v1', 'created': 'Sun, 17 Aug 2008 23:19:18 GMT'}]
|
2008-08-19
|
[array(['Lowther', 'George', ''], dtype=object)]
|
6,976 |
0711.2669
|
Otmar Venjakob
|
Peter Schneider and Otmar Venjakob
|
Localisations and Completions of Skew Power Series Rings
|
26 pages
|
Am. J. Math. 132, No. 1, 1-36 (2010)
| null | null |
math.RA math.NT
| null |
This paper is a natural continuation of the study of skew power series rings
A initiated in [P. Schneider and O. Venjakob, On the codimension of modules
over skew power series rings with applications to Iwasawa algebras, J. Pure
Appl. Algebra 204 (2005), 349 - 367.]. We construct skew Laurent series rings B
and show the existence of some canonical Ore sets S for the skew power series
rings A such that a certain completion of the localisation A_S is isomorphic to
B. This is applied to certain Iwasawa algebras. Finally we introduce subrings
of overconvergent skew Laurent series rings.
|
[{'version': 'v1', 'created': 'Fri, 16 Nov 2007 19:51:35 GMT'}]
|
2010-06-09
|
[array(['Schneider', 'Peter', ''], dtype=object)
array(['Venjakob', 'Otmar', ''], dtype=object)]
|
6,977 |
astro-ph/0703074
|
Vivek Agrawal
|
K. Sriram, V. K. Agrawal, Jayant K. Pendharkar, A. R. Rao
|
Anti-correlated hard X-ray time lags in Galactic black hole sources
|
14 pages, 7 figures, accepted for publication in ApJ
|
Astrophys.J.661:1055-1063,2007
|
10.1086/516771
| null |
astro-ph
| null |
We investigate the accretion disk geometry in Galactic black hole sources by
measuring the time delay between soft and hard X-ray emissions. Similar to the
recent discoveries of anti-correlated hard X-ray time lags in Cyg X-3 and GRS
1915+105, we find that the hard X-rays are anti-correlated with soft X-rays
with a significant lag in another source: XTE J1550-564. We also find the
existence of pivoting in the model independent X-ray spectrum during these
observations. We investigate time-resolved X-ray spectral parameters and find
that the variation in these parameters is consistent with the idea of a
truncated accretion disk. The QPO frequency, which is a measure of the size of
truncated accretion disk, too changes indicating that the geometric size of the
hard X-ray emitting region changes along with the spectral pivoting and soft
X-ray flux. Similar kind of delay is also noticed in 4U 1630-47.
|
[{'version': 'v1', 'created': 'Mon, 5 Mar 2007 11:15:41 GMT'}]
|
2011-02-11
|
[array(['Sriram', 'K.', ''], dtype=object)
array(['Agrawal', 'V. K.', ''], dtype=object)
array(['Pendharkar', 'Jayant K.', ''], dtype=object)
array(['Rao', 'A. R.', ''], dtype=object)]
|
6,978 |
0811.2036
|
Shinsei Ryu
|
Shinsei Ryu
|
Three-dimensional topological phase on the diamond lattice
|
7 pages, 5 figures
|
Phys. Rev. B 79, 075124 (2009)
|
10.1103/PhysRevB.79.075124
| null |
cond-mat.mes-hall cond-mat.str-el
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
An interacting bosonic model of Kitaev type is proposed on the
three-dimensional diamond lattice. Similarly to the two-dimensional Kitaev
model on the honeycomb lattice which exhibits both Abelian and non-Abelian
phases, the model has two (``weak'' and ``strong'' pairing) phases. In the weak
pairing phase, the auxiliary Majorana hopping problem is in a topological
superconducting phase characterized by a non-zero winding number introduced in
A. P. Schnyder, S. Ryu, A. Furusaki, and A. W. W. Ludwig, arXiv:0803.2786. The
topological character of the weak pairing phase is protected by a discrete
symmetry.
|
[{'version': 'v1', 'created': 'Thu, 13 Nov 2008 06:02:41 GMT'}
{'version': 'v2', 'created': 'Mon, 15 Jun 2009 04:36:30 GMT'}]
|
2009-11-13
|
[array(['Ryu', 'Shinsei', ''], dtype=object)]
|
6,979 |
1610.04426
|
Adel Rahimi
|
Adel Rahimi
|
Notes on phonological based drunken detection algorithm
|
5 pages, 3 figures
| null | null | null |
cs.CY
|
http://creativecommons.org/licenses/by/4.0/
|
In this paper we propose a new algorithm for detecting if a person is under
the influence of alcohol. This algorithm is based on number of pauses the
speaker makes by judging that if the number of pauses compared to the previous
recordings of the same person, which has been recorded beforehand, is higher.
If so the algorithm mark the speaker as drunk.
|
[{'version': 'v1', 'created': 'Sun, 1 Nov 2015 18:41:21 GMT'}]
|
2016-10-17
|
[array(['Rahimi', 'Adel', ''], dtype=object)]
|
6,980 |
1906.01153
|
Juan Calderon Bustillo
|
Juan Calder\'on Bustillo, Chris Evans, James A. Clark, Grace Kim,
Pablo Laguna and Deirdre Shoemaker
|
Post-merger chirps from binary black holes as probes of the final
black-hole horizon
|
Version accepted in Communications Physics. 11 pages, 5 figures in
main text, 3 Figures in Supp. Material
|
Communications Physics volume 3, Article number: 176 (2020)
|
10.1038/s42005-020-00446-7
|
LIGO DCC: P-1900139
|
gr-qc
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The merger of a binary black hole gives birth to a highly distorted final
black hole. The gravitational radiation emitted as this black hole relaxes
presents us with the unique opportunity to probe extreme gravity and its
connection with the dynamics of the black hole horizon. Using numerical
relativity simulations, we demonstrate a connection between a concrete
observable feature in the gravitational waves and geometrical features on the
dynamical apparent horizon of the final black hole. Specifically, we show how
the line-of-sight passage of a "cusp"-like defect on the horizon of the final
black hole correlates with "chirp"-like frequency peaks in the post-merger
gravitational-waves. These post-merger chirps should be observed and analyzed
as the sensitivity of LIGO and Virgo increases and as future generation
detectors, such as LISA and the Einstein Telescope, become operational.
|
[{'version': 'v1', 'created': 'Tue, 4 Jun 2019 01:53:42 GMT'}
{'version': 'v2', 'created': 'Tue, 17 Nov 2020 09:36:57 GMT'}]
|
2020-11-18
|
[array(['Bustillo', 'Juan Calderón', ''], dtype=object)
array(['Evans', 'Chris', ''], dtype=object)
array(['Clark', 'James A.', ''], dtype=object)
array(['Kim', 'Grace', ''], dtype=object)
array(['Laguna', 'Pablo', ''], dtype=object)
array(['Shoemaker', 'Deirdre', ''], dtype=object)]
|
6,981 |
hep-ph/0312318
|
Daniel R. Tovey
|
M.M. Nojiri, G. Polesello and D.R. Tovey
|
Measuring the Mass of the Lightest Chargino at the CERN LHC
|
6 pages, 5 figures. To appear in the proceedings of the workshop: Les
Houches 2003: Physics at TeV Scale Colliders
| null | null |
ATL-PHYS-2003-040, SHEF-HEP/03-3, YITP-03-79
|
hep-ph
| null |
Results are presented of a feasibility study of techniques for measuring the
mass of the lightest chargino at the CERN LHC. These results suggest that for
one particular mSUGRA model a statistically significant chargino signal can be
identified and the chargino mass reconstructed with a precision of order 11%
for of order 100 fb-1 of data.
|
[{'version': 'v1', 'created': 'Mon, 22 Dec 2003 17:44:00 GMT'}]
|
2007-05-23
|
[array(['Nojiri', 'M. M.', ''], dtype=object)
array(['Polesello', 'G.', ''], dtype=object)
array(['Tovey', 'D. R.', ''], dtype=object)]
|
6,982 |
1701.00759
|
Fatima Kahil
|
F. Kahil, T. L. Riethm\"uller, S. K. Solanki
|
Brightness of Solar Magnetic Elements as a Function of Magnetic Flux at
High Spatial Resolution
| null | null |
10.3847/1538-4365/229/1/12
| null |
astro-ph.SR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We investigate the relationship between the photospheric magnetic field of
small-scale magnetic elements in the quiet Sun (QS) at disc centre, and the
brightness at 214 nm, 300 nm, 313 nm, 388 nm, 397 nm, and at 525.02 nm. To this
end we analysed spectropolarimetric and imaging time series acquired
simultaneously by the IMaX magnetograph and the SuFI filter imager on-board the
balloon-borne observatory Sunrise during its first science flight in 2009, with
high spatial and temporal resolution.
We find a clear dependence of the contrast in the near ultraviolet (NUV) and
the visible on the line-of-sight component of the magnetic field, $B_{\rm
LOS}$, which is best described by a logarithmic model. This function represents
well the relationship between the Ca II H-line emission and $B_{\rm LOS}$, and
works better than a power-law fit adopted by previous studies. This, along with
the high contrast reached at these wavelengths, will help with determining the
contribution of small-scale elements in the QS to the irradiance changes for
wavelengths below 388 nm. At all wavelengths including the continuum at 525.40
nm the intensity contrast does not decrease with increasing $B_{\rm LOS}$. This
result also strongly supports that Sunrise has resolved small strong magnetic
field elements in the internetwork, resulting in constant contrasts for large
magnetic fields in our continuum contrast at 525.40 nm vs. $B_{\rm LOS}$
scatterplot, unlike the turnover obtained in previous observational studies.
This turnover is due to the intermixing of the bright magnetic features with
the dark intergranular lanes surrounding them.
|
[{'version': 'v1', 'created': 'Tue, 3 Jan 2017 17:50:55 GMT'}]
|
2017-04-05
|
[array(['Kahil', 'F.', ''], dtype=object)
array(['Riethmüller', 'T. L.', ''], dtype=object)
array(['Solanki', 'S. K.', ''], dtype=object)]
|
6,983 |
gr-qc/0209092
|
Carsten Gundlach
|
B. J. Carr and Carsten Gundlach
|
Spacetime structure of self-similar spherically symmetric perfect fluid
solutions
|
RevTex4, 14 pages, 16 eps figures, accepted for Phys. Rev. D
|
Phys.Rev.D67:024035,2003
|
10.1103/PhysRevD.67.024035
| null |
gr-qc
| null |
We classify all spherically symmetric and homothetic spacetimes that are
allowed kinematically by constructing them from a small number of building
blocks. We then restrict attention to a particular dynamics, namely perfect
fluid matter with the scale-free barotropic equation of state p = alpha mu
where 0<alpha<1 is a constant. We assign conformal diagrams to all solutions in
the complete classification of Carr and Coley, and so establish which of the
kinematic possibilities are realized for these dynamics. We pay particular
attention to those solutions which arise as critical solutions during
gravitational collapse.
|
[{'version': 'v1', 'created': 'Tue, 24 Sep 2002 16:23:21 GMT'}
{'version': 'v2', 'created': 'Mon, 9 Dec 2002 08:41:30 GMT'}]
|
2008-11-26
|
[array(['Carr', 'B. J.', ''], dtype=object)
array(['Gundlach', 'Carsten', ''], dtype=object)]
|
6,984 |
1511.05972
|
Guangrui Xia
|
Xiyue Li, Zhiqiang Li, Simon Li, Lukas Chrostowski and Guangrui Xia
|
Design Considerations of Biaxially Tensile-Strained Germanium-on-Silicon
Lasers
|
12 pages, 9 figures
| null |
10.1088/0268-1242/31/6/065015
| null |
physics.optics
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Physical models of Ge energy band structure and material loss were
implemented in LASTIP(TM), a 2D simulation tool for edge emitting laser diodes.
The model calculation is able to match experimental data available. Important
design parameters of a Fabry-Perot Ge laser, such as the cavity length,
thickness, width, polycrystalline Si cladding layer thickness were studied and
optimized. The laser structure optimizations alone were shown to reduce Ith by
22-fold and increase the differential efficiency by 11 times. The simulations
also showed that improving the defect limited carrier lifetime is critical for
achieving an efficient and low-threshold Ge laser. With the optimized structure
design (300 micron for the cavity length, 0.4 micron for the cavity width, 0.3
micron for the cavity thickness, and 0.6 micron for the polycrystalline Si
cladding layer thickness) and a defect limited carrier lifetime of 100 ns, a
wall-plug efficiency of 14.6% at 1mW output is predicted, where Jth of 2.8
kA/cm2, Ith of 3.3 mA, I_1mA of 9 mA, and differential efficiency of 23.6% can
also be achieved. These are tremendous improvements from the available
experimental values at 280 kA/cm2, 756 mA, 837 mA and 1.9%, respectively.
|
[{'version': 'v1', 'created': 'Wed, 18 Nov 2015 21:00:28 GMT'}
{'version': 'v2', 'created': 'Sat, 5 Dec 2015 22:30:00 GMT'}
{'version': 'v3', 'created': 'Mon, 14 Dec 2015 15:14:35 GMT'}]
|
2016-05-25
|
[array(['Li', 'Xiyue', ''], dtype=object)
array(['Li', 'Zhiqiang', ''], dtype=object)
array(['Li', 'Simon', ''], dtype=object)
array(['Chrostowski', 'Lukas', ''], dtype=object)
array(['Xia', 'Guangrui', ''], dtype=object)]
|
6,985 |
cond-mat/9702059
|
Sven Lubeck
|
S. L\"ubeck and K. D. Usadel
|
Numerical Determination of the Avalanche Exponents of the
Bak-Tang-Wiesenfeld Model
|
6 pages, 6 figures
|
Physical Review E 55, 4095 (1997)
|
10.1103/PhysRevE.55.4095
| null |
cond-mat.stat-mech
| null |
We consider the Bak-Tang-Wiesenfeld sandpile model on a two-dimensional
square lattice of lattice sizes up to L=4096. A detailed analysis of the
probability distribution of the size, area, duration and radius of the
avalanches will be given. To increase the accuracy of the determination of the
avalanche exponents we introduce a new method for analyzing the data which
reduces the finite-size effects of the measurements. The exponents of the
avalanche distributions differ slightly from previous measurements and
estimates obtained from a renormalization group approach.
|
[{'version': 'v1', 'created': 'Thu, 6 Feb 1997 17:54:52 GMT'}
{'version': 'v2', 'created': 'Sat, 17 May 1997 13:08:38 GMT'}]
|
2009-10-30
|
[array(['Lübeck', 'S.', ''], dtype=object)
array(['Usadel', 'K. D.', ''], dtype=object)]
|
6,986 |
1909.12800
|
Natasha Sachdeva
|
N. Sachdeva, I. Fan, E. Babcock, M. Burghoff, T. E. Chupp, S.
Degenkolb, P. Fierlinger, S. Haude, E. Kraegeloh, W. Kilian, S.
Knappe-Gr\"uneberg, F. Kuchler, T. Liu, M. Marino, J. Meinel, K. Rolfs, Z.
Salhi, A. Schnabel, J. T. Singh, S. Stuiber, W. A. Terrano, L. Trahms, and J.
Voigt
|
New Limit on the Permanent Electric Dipole Moment of $^{129}$Xe using
$^{3}$He Comagnetometry and SQUID Detection
|
To be published in Physical Review Letters. arXiv admin note:
substantial text overlap with arXiv:1902.02864
| null |
10.1103/PhysRevLett.123.143003
| null |
physics.atom-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We report results of a new technique to measure the electric dipole moment of
$^{129}$Xe with $^3$He comagnetometry. Both species are polarized using
spin-exchange optical pumping, transferred to a measurement cell, and
transported into a magnetically shielded room, where SQUID magnetometers detect
free precession in applied electric and magnetic fields. The result from a one
week measurement campaign in 2017 and a 2.5 week campaign in 2018, combined
with detailed study of systematic effects, is $d_A(^{129}\mathrm{Xe}) = (1.4
\pm 6.6_\mathrm{stat} \pm 2.0_\mathrm{syst})\times10^{-28}~e\,\mathrm{cm}$.
This corresponds to an upper limit of $|d_A(^{129}\mathrm{Xe})| < 1.4 \times
10^{-27} ~e\,\mathrm{cm}~(95\%~\mathrm{CL})$, a factor of five more sensitive
than the limit set in 2001.
|
[{'version': 'v1', 'created': 'Thu, 26 Sep 2019 16:53:15 GMT'}]
|
2019-10-10
|
[array(['Sachdeva', 'N.', ''], dtype=object)
array(['Fan', 'I.', ''], dtype=object)
array(['Babcock', 'E.', ''], dtype=object)
array(['Burghoff', 'M.', ''], dtype=object)
array(['Chupp', 'T. E.', ''], dtype=object)
array(['Degenkolb', 'S.', ''], dtype=object)
array(['Fierlinger', 'P.', ''], dtype=object)
array(['Haude', 'S.', ''], dtype=object)
array(['Kraegeloh', 'E.', ''], dtype=object)
array(['Kilian', 'W.', ''], dtype=object)
array(['Knappe-Grüneberg', 'S.', ''], dtype=object)
array(['Kuchler', 'F.', ''], dtype=object)
array(['Liu', 'T.', ''], dtype=object)
array(['Marino', 'M.', ''], dtype=object)
array(['Meinel', 'J.', ''], dtype=object)
array(['Rolfs', 'K.', ''], dtype=object)
array(['Salhi', 'Z.', ''], dtype=object)
array(['Schnabel', 'A.', ''], dtype=object)
array(['Singh', 'J. T.', ''], dtype=object)
array(['Stuiber', 'S.', ''], dtype=object)
array(['Terrano', 'W. A.', ''], dtype=object)
array(['Trahms', 'L.', ''], dtype=object)
array(['Voigt', 'J.', ''], dtype=object)]
|
6,987 |
1902.06008
|
Gonzalo Uribarri
|
Gonzalo Uribarri and Gabriel B. Mindlin
|
Resonant features in a forced population of excitatory neurons
|
24 pages, 9 figures
| null | null | null |
nlin.AO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In recent years, the study of coupled excitable oscillators has largely
benefited from a new analytical technique developed by Ott and Antonsen. This
technique allows to express the dynamics of certain macroscopic observable in
the ensemble in terms of a reduced set of ordinary differential equations. This
makes it possible to build low-dimensional models for the global activity of
neural systems from first principles. We investigated the macroscopic response
of a large set of excitatory neurons to different forcing strategies. We report
resonant behavior, that depends on the heterogeneity between the units and
their coupling strength. This contrasts with the type of response that an
external forcing can elicit in simple and widely used phenomenological models.
|
[{'version': 'v1', 'created': 'Fri, 15 Feb 2019 23:30:39 GMT'}]
|
2019-02-19
|
[array(['Uribarri', 'Gonzalo', ''], dtype=object)
array(['Mindlin', 'Gabriel B.', ''], dtype=object)]
|
6,988 |
math/0512027
|
Riad Masri
|
Riad Masri
|
Multiple zeta values over global function fields
| null | null | null | null |
math.NT
| null |
In this paper we develop the analytic theory of a multiple zeta function in d
independent complex variables defined over a global function field. This is the
function field analog of the Euler-Zagier multiple zeta function of depth d.
|
[{'version': 'v1', 'created': 'Thu, 1 Dec 2005 13:58:20 GMT'}]
|
2007-05-23
|
[array(['Masri', 'Riad', ''], dtype=object)]
|
6,989 |
1007.1161
|
Thore Husfeldt
|
Andreas Bj\"orklund, Thore Husfeldt, Petteri Kaski, Mikko Koivisto
|
Narrow sieves for parameterized paths and packings
| null | null | null | null |
cs.DS
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We present randomized algorithms for some well-studied, hard combinatorial
problems: the k-path problem, the p-packing of q-sets problem, and the
q-dimensional p-matching problem. Our algorithms solve these problems with high
probability in time exponential only in the parameter (k, p, q) and using
polynomial space; the constant bases of the exponentials are significantly
smaller than in previous works. For example, for the k-path problem the
improvement is from 2 to 1.66. We also show how to detect if a d-regular graph
admits an edge coloring with $d$ colors in time within a polynomial factor of
O(2^{(d-1)n/2}).
Our techniques build upon and generalize some recently published ideas by I.
Koutis (ICALP 2009), R. Williams (IPL 2009), and A. Bj\"orklund (STACS 2010,
FOCS 2010).
|
[{'version': 'v1', 'created': 'Wed, 7 Jul 2010 15:08:09 GMT'}]
|
2010-07-08
|
[array(['Björklund', 'Andreas', ''], dtype=object)
array(['Husfeldt', 'Thore', ''], dtype=object)
array(['Kaski', 'Petteri', ''], dtype=object)
array(['Koivisto', 'Mikko', ''], dtype=object)]
|
6,990 |
2106.10326
|
Dafei Jin
|
Xianjing Zhou, Gerwin Koolstra, Xufeng Zhang, Ge Yang, Xu Han, Brennan
Dizdar, Xinhao Li, Divan Ralu, Wei Guo, Kater W. Murch, David I. Schuster,
Dafei Jin
|
Single electrons on solid neon as a solid-state qubit platform
|
16 pages, 11 figures
|
Nature 605, 46-50 (2022)
|
10.1038/s41586-022-04539-x
| null |
quant-ph cond-mat.mes-hall cond-mat.mtrl-sci physics.app-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Progress toward the realization of quantum computers requires persistent
advances in their constituent building blocks - qubits. Novel qubit platforms
that simultaneously embody long coherence, fast operation, and large
scalability offer compelling advantages in the construction of quantum
computers and many other quantum information systems. Electrons, ubiquitous
elementary particles of nonzero charge, spin, and mass, have commonly been
perceived as paradigmatic local quantum information carriers. Despite superior
controllability and configurability, their practical performance as qubits via
either motional or spin states depends critically on their material
environment. Here we report our experimental realization of a new qubit
platform based upon isolated single electrons trapped on an ultraclean solid
neon surface in vacuum. By integrating an electron trap in a circuit quantum
electrodynamics architecture, we achieve strong coupling between the motional
states of a single electron and a single microwave photon in an on-chip
superconducting resonator. Qubit gate operations and dispersive readout are
implemented to measure the energy relaxation time $T_1$ of $15~\mu$s and phase
coherence time $T_2$ over $200~$ns. These results indicate that the
electron-on-solid-neon qubit already performs near the state of the art as a
charge qubit.
|
[{'version': 'v1', 'created': 'Fri, 18 Jun 2021 19:35:16 GMT'}
{'version': 'v2', 'created': 'Wed, 25 Aug 2021 06:24:16 GMT'}
{'version': 'v3', 'created': 'Sun, 27 Feb 2022 18:18:22 GMT'}]
|
2022-05-10
|
[array(['Zhou', 'Xianjing', ''], dtype=object)
array(['Koolstra', 'Gerwin', ''], dtype=object)
array(['Zhang', 'Xufeng', ''], dtype=object)
array(['Yang', 'Ge', ''], dtype=object)
array(['Han', 'Xu', ''], dtype=object)
array(['Dizdar', 'Brennan', ''], dtype=object)
array(['Li', 'Xinhao', ''], dtype=object)
array(['Ralu', 'Divan', ''], dtype=object)
array(['Guo', 'Wei', ''], dtype=object)
array(['Murch', 'Kater W.', ''], dtype=object)
array(['Schuster', 'David I.', ''], dtype=object)
array(['Jin', 'Dafei', ''], dtype=object)]
|
6,991 |
1710.11198
|
Yihao Feng
|
Hao Liu, Yihao Feng, Yi Mao, Dengyong Zhou, Jian Peng, Qiang Liu
|
Action-depedent Control Variates for Policy Optimization via Stein's
Identity
|
The first two authors contributed equally. Author ordering determined
by coin flip over a Google Hangout. Accepted by ICLR 2018
| null | null | null |
stat.ML cs.LG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Policy gradient methods have achieved remarkable successes in solving
challenging reinforcement learning problems. However, it still often suffers
from the large variance issue on policy gradient estimation, which leads to
poor sample efficiency during training. In this work, we propose a control
variate method to effectively reduce variance for policy gradient methods.
Motivated by the Stein's identity, our method extends the previous control
variate methods used in REINFORCE and advantage actor-critic by introducing
more general action-dependent baseline functions. Empirical studies show that
our method significantly improves the sample efficiency of the state-of-the-art
policy gradient approaches.
|
[{'version': 'v1', 'created': 'Mon, 30 Oct 2017 19:03:48 GMT'}
{'version': 'v2', 'created': 'Wed, 1 Nov 2017 21:33:17 GMT'}
{'version': 'v3', 'created': 'Fri, 10 Nov 2017 04:06:07 GMT'}
{'version': 'v4', 'created': 'Fri, 23 Feb 2018 07:10:10 GMT'}]
|
2018-02-26
|
[array(['Liu', 'Hao', ''], dtype=object)
array(['Feng', 'Yihao', ''], dtype=object)
array(['Mao', 'Yi', ''], dtype=object)
array(['Zhou', 'Dengyong', ''], dtype=object)
array(['Peng', 'Jian', ''], dtype=object)
array(['Liu', 'Qiang', ''], dtype=object)]
|
6,992 |
1102.0900
|
Muamer Kadic
|
Kadic Muamer, Dupont Guillaume, Tieh-Ming Chang, Sebastien Guenneau,
Stefan Enoch
|
Curved trajectories on transformed metal surfaces: Luneburg lens,
beam-splitter, invisibility carpet and black hole for surface plasmon
polaritons
|
10 pages 4 figures Tacona 2010
| null |
10.1016/j.photonics.2011.06.002
| null |
physics.optics physics.soc-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Transformational optics are shown to markedly enhance the control of the
electromagnetic wave trajectories within metamaterials with unconventional
functionalities such as a beam splitter, a toroidal carpet, a Luneburg lens and
a black hole, all of which are specially designed for surface plasmon
polaritons propagating on a metal plate
|
[{'version': 'v1', 'created': 'Fri, 4 Feb 2011 13:05:26 GMT'}]
|
2015-05-27
|
[array(['Muamer', 'Kadic', ''], dtype=object)
array(['Guillaume', 'Dupont', ''], dtype=object)
array(['Chang', 'Tieh-Ming', ''], dtype=object)
array(['Guenneau', 'Sebastien', ''], dtype=object)
array(['Enoch', 'Stefan', ''], dtype=object)]
|
6,993 |
2204.03134
|
Xiangyu Wu
|
Xiangyu Wu, Shuxiao Chen, Koushil Sreenath, Mark W. Mueller
|
Perception-aware receding horizon trajectory planning for multicopters
with visual-inertial odometry
|
12 pages
| null | null | null |
cs.RO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Visual inertial odometry (VIO) is widely used for the state estimation of
multicopters, but it may function poorly in environments with few visual
features or in overly aggressive flights. In this work, we propose a
perception-aware collision avoidance trajectory planner for multicopters, that
may be used with any feature-based VIO algorithm. Our approach is able to fly
the vehicle to a goal position at fast speed, avoiding obstacles in an unknown
stationary environment while achieving good VIO state estimation accuracy. The
proposed planner samples a group of minimum jerk trajectories and finds
collision-free trajectories among them, which are then evaluated based on their
speed to the goal and perception quality. Both the motion blur of features and
their locations are considered for the perception quality. Our novel
consideration of the motion blur of features enables automatic adaptation of
the trajectory's aggressiveness under environments with different light levels.
The best trajectory from the evaluation is tracked by the vehicle and is
updated in a receding horizon manner when new images are received from the
camera. Only generic assumptions about the VIO are made, so that the planner
may be used with various existing systems. The proposed method can run in
real-time on a small embedded computer on board. We validated the effectiveness
of our proposed approach through experiments in both indoor and outdoor
environments. Compared to a perception-agnostic planner, the proposed planner
kept more features in the camera's view and made the flight less aggressive,
making the VIO more accurate. It also reduced VIO failures, which occurred for
the perception-agnostic planner but not for the proposed planner. The ability
of the proposed planner to fly through dense obstacles was also validated. The
experiment video can be found at https://youtu.be/qO3LZIrpwtQ.
|
[{'version': 'v1', 'created': 'Thu, 7 Apr 2022 00:24:29 GMT'}
{'version': 'v2', 'created': 'Mon, 1 Aug 2022 15:18:06 GMT'}]
|
2022-08-02
|
[array(['Wu', 'Xiangyu', ''], dtype=object)
array(['Chen', 'Shuxiao', ''], dtype=object)
array(['Sreenath', 'Koushil', ''], dtype=object)
array(['Mueller', 'Mark W.', ''], dtype=object)]
|
6,994 |
astro-ph/0302284
|
Dean E. McLaughlin
|
Dean E. McLaughlin
|
The Globular Cluster Luminosity Function
|
7 pages, to appear in Proceedings of the ESO Workshop on
Extragalactic Globular Cluster Systems, ed. M. Kissler-Patig
| null |
10.1007/10857603_50
| null |
astro-ph
| null |
The main aspects of the globular cluster luminosity function needing to be
explained by a general theory of cluster formation are reviewed, and the
importance of simultaneously understanding globular cluster systematics (the
fundamental plane) within such a theory is pointed out.
|
[{'version': 'v1', 'created': 'Fri, 14 Feb 2003 16:05:08 GMT'}]
|
2009-11-07
|
[array(['McLaughlin', 'Dean E.', ''], dtype=object)]
|
6,995 |
cond-mat/0202329
|
Adam D. Gromko
|
A. D. Gromko, A. V. Fedorov, Y. -D. Chuang, J. D. Koralek, Y. Aiura,
Y. Yamaguchi, K. Oka, Yoichi Ando, D. S. Dessau
|
Mass-renormalized electronic excitations at ($\pi$, 0) in the
superconducting state of $Bi_{2}Sr_{2}CaCu_{2}O_{8+\delta}$
| null | null |
10.1103/PhysRevB.68.174520
| null |
cond-mat.supr-con cond-mat.str-el
| null |
Using high-resolution angle-resolved photoemission spectroscopy on
$Bi_{2}Sr_{2}CaCu_{2}O_{8+\delta}$, we have made the first observation of a
mass renormalization or "kink" in the E vs. $\vec k$ dispersion relation
localized near $(\pi, 0)$. Compared to the kink observed along the nodal
direction, this new effect is clearly stronger, appears at a lower energy near
40 meV, and is only present in the superconducting state. The kink energy scale
defines a cutoff below which well-defined quasiparticle excitations occur. This
effect is likely due to coupling to a bosonic excitation, with the most
plausible candidate being the magnetic resonance mode observed in inelastic
neutron scattering.
|
[{'version': 'v1', 'created': 'Tue, 19 Feb 2002 23:27:15 GMT'}
{'version': 'v2', 'created': 'Thu, 21 Feb 2002 16:56:16 GMT'}]
|
2009-11-07
|
[array(['Gromko', 'A. D.', ''], dtype=object)
array(['Fedorov', 'A. V.', ''], dtype=object)
array(['Chuang', 'Y. -D.', ''], dtype=object)
array(['Koralek', 'J. D.', ''], dtype=object)
array(['Aiura', 'Y.', ''], dtype=object)
array(['Yamaguchi', 'Y.', ''], dtype=object)
array(['Oka', 'K.', ''], dtype=object)
array(['Ando', 'Yoichi', ''], dtype=object)
array(['Dessau', 'D. S.', ''], dtype=object)]
|
6,996 |
1208.1666
|
Kourosh Nozari
|
Kourosh Nozari, F. Rajabi and K. Asadi
|
Stability analysis of the cosmological solutions with induced gravity
and scalar field on the brane
|
33 pages, 20 figures, accepted for publication in Class. Quantum Grav
|
Class. Quantum Grav. 29 (2012) 175002
|
10.1088/0264-9381/29/17/175002
| null |
gr-qc astro-ph.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study cosmological dynamics and phase space of a scalar field localized on
the DGP brane. We consider both the minimally and nonminimally coupled scalar
quintessence and phantom fields on the brane. In the nonminimal case, the
scalar field couples with induced gravity on the brane. We present a detailed
analysis of the critical points, their stability and late-time cosmological
viability of the solutions in the phase space of the model.
|
[{'version': 'v1', 'created': 'Wed, 8 Aug 2012 13:50:48 GMT'}]
|
2012-11-30
|
[array(['Nozari', 'Kourosh', ''], dtype=object)
array(['Rajabi', 'F.', ''], dtype=object)
array(['Asadi', 'K.', ''], dtype=object)]
|
6,997 |
2002.08768
|
Howard H. Yang
|
Howard H. Yang, Ahmed Arafa, Tony Q. S. Quek, H. Vincent Poor
|
Optimizing Information Freshness in Wireless Networks: A Stochastic
Geometry Approach
|
arXiv admin note: substantial text overlap with arXiv:1907.09674
| null | null | null |
cs.IT cs.NI math.IT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Optimization of information freshness in wireless networks has usually been
performed based on queueing analysis that captures only the temporal traffic
dynamics associated with the transmitters and receivers. However, the effect of
interference, which is mainly dominated by the interferers' geographic
locations, is not well understood. In this paper, we leverage a spatiotemporal
model, which allows one to characterize the age of information (AoI) from a
joint queueing-geometry perspective, for the design of a decentralized
scheduling policy that exploits local observation to make transmission
decisions that minimize the AoI. To quantify the performance, we also derive
accurate and tractable expressions for the peak AoI. Numerical results reveal
that: i) the packet arrival rate directly affects the service process due to
queueing interactions, ii) the proposed scheme can adapt to traffic variations
and largely reduce the peak AoI, and iii) the proposed scheme scales well as
the network grows in size. This is done by adaptively adjusting the radio
access probability at each transmitter to the change of the ambient
environment.
|
[{'version': 'v1', 'created': 'Wed, 19 Feb 2020 06:48:51 GMT'}]
|
2020-02-21
|
[array(['Yang', 'Howard H.', ''], dtype=object)
array(['Arafa', 'Ahmed', ''], dtype=object)
array(['Quek', 'Tony Q. S.', ''], dtype=object)
array(['Poor', 'H. Vincent', ''], dtype=object)]
|
6,998 |
0810.3505
|
Raul Jimenez
|
Raul Jimenez, Alan F. Heavens, Ben Panter, Rita Tojeiro
|
Physical Classification of Galaxies with MOPED/VESPA
|
Invited talk at the class2008 meeting in Ringberg
| null |
10.1063/1.3059092
| null |
astro-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The availability of high-quality spectra for a large number of galaxies in
the SDSS survey allows for a more sophisticated extraction of information about
their stellar populations than, e.g., the luminosity weighted age. Indeed,
sophisticated and robust techniques to fully analyze galaxy spectra have now
reached enough maturity as to trust their results and findings. By
reconstructing the star formation and metallicity history of galaxies from the
SDSS fossil record and analyzing how it relates to its environment, we have
learned how to classify galaxies: to first order the evolution of a galaxy is
determined by its present stellar mass, which in turn seems to be governed by
the merger rate of dark halos.
|
[{'version': 'v1', 'created': 'Mon, 20 Oct 2008 09:47:43 GMT'}]
|
2009-11-13
|
[array(['Jimenez', 'Raul', ''], dtype=object)
array(['Heavens', 'Alan F.', ''], dtype=object)
array(['Panter', 'Ben', ''], dtype=object)
array(['Tojeiro', 'Rita', ''], dtype=object)]
|
6,999 |
hep-ph/0201056
|
Witold Skiba
|
Witold Skiba and David Smith (MIT)
|
Localized Fermions and Anomaly Inflow via Deconstruction
|
12 pages, minor changes to section 4
|
Phys.Rev.D65:095002,2002
|
10.1103/PhysRevD.65.095002
|
MIT-CTP-3229
|
hep-ph hep-th
| null |
We study fermion localization in gauge theory space. We consider four
dimensional product gauge groups in which light chiral fermions transform under
different gauge factors of the product group. This construction provides a
suppression of higher dimensional operators. For example, it can be used to
suppress dangerous proton decay operators. The anomalies associated with the
light chiral fermions are compensated by Wess-Zumino terms, which in the
continuum limit reproduce the five dimensional Chern-Simons term.
|
[{'version': 'v1', 'created': 'Wed, 9 Jan 2002 02:23:56 GMT'}
{'version': 'v2', 'created': 'Mon, 14 Jan 2002 16:41:22 GMT'}]
|
2008-11-26
|
[array(['Skiba', 'Witold', '', 'MIT'], dtype=object)
array(['Smith', 'David', '', 'MIT'], dtype=object)]
|
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