Unnamed: 0
int64 0
20k
| id
stringlengths 9
16
| submitter
stringlengths 1
50
⌀ | authors
stringlengths 5
15.2k
| title
stringlengths 7
294
| comments
stringlengths 1
682
⌀ | journal-ref
stringlengths 4
256
⌀ | doi
stringlengths 13
133
⌀ | report-no
stringlengths 2
187
⌀ | categories
stringlengths 5
90
| license
stringclasses 9
values | abstract
stringlengths 21
2.62k
| versions
stringlengths 62
2.35k
| update_date
stringlengths 10
10
| authors_parsed
stringlengths 39
44.4k
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1,000 |
math/9903196
|
Kannan Soundararajan
|
Andrew Granville (University of Georgia), K. Soundararajan (AIM and
Princeton University)
|
Large character sums
|
Abstract added in migration.
| null | null |
AIM 1999-5
|
math.NT
| null |
Assuming the Generalized Riemann Hypothesis, the authors study when a
character sum over all n <= x is o(x); they show that this holds if log x / log
log q -> infinity and q -> infinity (q is the size of the finite field).
|
[{'version': 'v1', 'created': 'Tue, 23 Mar 1999 00:00:00 GMT'}]
|
2016-09-07
|
[array(['Granville', 'Andrew', '', 'University of Georgia'], dtype=object)
array(['Soundararajan', 'K.', '', 'AIM and\n Princeton University'],
dtype=object) ]
|
1,001 |
1906.07339
|
Shubhendra Singhal Mr.
|
Shubhendra Pal Singhal
|
Reputation Systems -- Fair allocation of points to the editors in the
collaborative community
|
6 pages, 2 figures
|
International Research Journal of Engineering and Technology
(IRJET) (2019), e-ISSN: 2395-0056, p-ISSN: 2395-0072, June 2019,
"https://www.irjet.net/archives/V6/i6/IRJET-V6I6482.pdf"
| null |
Volume: 06 Issue: 06, June 2019, Page number(2259-2263)
|
cs.SE cs.SI
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper we are trying to determine a scheme for the fair allocation of
points to the contributors of the collaborative community. The major problem of
fair allocation of points among the contributors is that we have to analyze the
improvement in the versions of an article. Lets say there is a contribution of
major change in content which is relevant vs the contribution of adding a
single comma. Every contributor cannot be given the same points in such a case.
There are many ways which can be used like number of changes in a new version.
That might seem relevant but it becomes irrelevant in terms of correct content
contribution and other significant changes. There is no AI system too which can
detect such a change and award the points accordingly. So this problem of
allocation of points to the contributors is presented by an algorithm with a
theoretical proof. It relies on the interactive interaction of the users in the
system which is trivial in case of big system design economies.
|
[{'version': 'v1', 'created': 'Tue, 18 Jun 2019 02:01:46 GMT'}
{'version': 'v2', 'created': 'Fri, 28 Jun 2019 21:55:24 GMT'}]
|
2019-07-02
|
[array(['Singhal', 'Shubhendra Pal', ''], dtype=object)]
|
1,002 |
1812.10885
|
Longlong Jing
|
Longlong Jing, Yucheng Chen, Yingli Tian
|
Coarse-to-fine Semantic Segmentation from Image-level Labels
| null | null | null | null |
cs.CV
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Deep neural network-based semantic segmentation generally requires
large-scale cost extensive annotations for training to obtain better
performance. To avoid pixel-wise segmentation annotations which are needed for
most methods, recently some researchers attempted to use object-level labels
(e.g. bounding boxes) or image-level labels (e.g. image categories). In this
paper, we propose a novel recursive coarse-to-fine semantic segmentation
framework based on only image-level category labels. For each image, an initial
coarse mask is first generated by a convolutional neural network-based
unsupervised foreground segmentation model and then is enhanced by a graph
model. The enhanced coarse mask is fed to a fully convolutional neural network
to be recursively refined. Unlike existing image-level label-based semantic
segmentation methods which require to label all categories for images contain
multiple types of objects, our framework only needs one label for each image
and can handle images contains multi-category objects. With only trained on
ImageNet, our framework achieves comparable performance on PASCAL VOC dataset
as other image-level label-based state-of-the-arts of semantic segmentation.
Furthermore, our framework can be easily extended to foreground object
segmentation task and achieves comparable performance with the state-of-the-art
supervised methods on the Internet Object dataset.
|
[{'version': 'v1', 'created': 'Fri, 28 Dec 2018 04:04:06 GMT'}]
|
2018-12-31
|
[array(['Jing', 'Longlong', ''], dtype=object)
array(['Chen', 'Yucheng', ''], dtype=object)
array(['Tian', 'Yingli', ''], dtype=object)]
|
1,003 |
1409.0102
|
Olav Kristian Nygaard
|
Olav Nygaard
|
Uniform boundedness deciding sets, and a problem of M. Valdivia
|
The paper is withdrawn because there is a serious gap that I haven't
been able to fill
| null | null | null |
math.FA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We prove that if a set $B$ in a Banach space $X$ can be written as an
increasing, countable union $B=\cup_n B_n$ of sets $B_n$ such that no $B_n$ is
uniform boundedness deciding, then also $B$ is not uniform boundedness
deciding. From this we can give a positive answer to a question of M. Valdivia.
|
[{'version': 'v1', 'created': 'Sat, 30 Aug 2014 11:09:15 GMT'}
{'version': 'v2', 'created': 'Sun, 19 Jul 2015 15:20:43 GMT'}]
|
2015-07-21
|
[array(['Nygaard', 'Olav', ''], dtype=object)]
|
1,004 |
0911.5516
|
Hume A. Feldman
|
Hume A. Feldman (Kansas), Richard Watkins (Willamette) and Michael J.
Hudson (Waterloo)
|
Cosmic Flows on 100 Mpc/h Scales: Standardized Minimum Variance Bulk
Flow, Shear and Octupole Moments
|
13 Pages, 7 figures, 4 tables. Some changes to reflect the published
version
|
Mon.Not.Roy.Astron.Soc.407:2328-2338,2010
|
10.1111/j.1365-2966.2010.17052.x
| null |
astro-ph.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The low order moments, such as the bulk flow and shear, of the large scale
peculiar velocity field are sensitive probes of the matter density fluctuations
on very large scales. In practice, however, peculiar velocity surveys are
usually sparse and noisy, which can lead to the aliasing of small scale power
into what is meant to be a probe of the largest scales. Previously, we
developed an optimal ``minimum variance'' (MV) weighting scheme, designed to
overcome this problem by minimizing the difference between the measured bulk
flow (BF) and that which would be measured by an ideal survey. Here we extend
this MV analysis to include the shear and octupole moments, which are designed
to have almost no correlations between them so that they are virtually
orthogonal. We apply this MV analysis to a compilation of all major peculiar
velocity surveys, consisting of 4536 measurements. Our estimate of the BF on
scales of ~ 100 Mpc/h has a magnitude of |v|= 416 +/- 78 km/s towards Galactic
l = 282 degree +/- 11 degree and b = 6 degree +/- 6 degree. This result is in
disagreement with LCDM with WMAP5 cosmological parameters at a high confidence
level, but is in good agreement with our previous MV result without an
orthogonality constraint, showing that the shear and octupole moments did not
contaminate the previous BF measurement. The shear and octupole moments are
consistent with WMAP5 power spectrum, although the measurement noise is larger
for these moments than for the BF. The relatively low shear moments suggest
that the sources responsible for the BF are at large distances.
|
[{'version': 'v1', 'created': 'Sun, 29 Nov 2009 21:13:58 GMT'}
{'version': 'v2', 'created': 'Fri, 25 Jun 2010 21:00:34 GMT'}]
|
2011-02-15
|
[array(['Feldman', 'Hume A.', '', 'Kansas'], dtype=object)
array(['Watkins', 'Richard', '', 'Willamette'], dtype=object)
array(['Hudson', 'Michael J.', '', 'Waterloo'], dtype=object)]
|
1,005 |
1403.7684
|
Nikolaos Mavromatos
|
Nick E. Mavromatos
|
Pseudoscalar Fields in Torsionful Geometries of the Early Universe, the
Baryon Asymmetry and Majorana Neutrino Mass Generation
|
14 pages bibtex, one eps figure incorporated, uses special macros;
Invited plenary talk at XIV Mexican Workshop on Particles and Fields,
November 25-29 2013, Oaxaca (Mexico)
| null | null |
LCTS/2014-03, KCL-PH-TH/2014-03
|
hep-ph gr-qc hep-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We discuss here a specific field-theory model, inspired from string theory,
in which the generation of a matter-antimatter asymmetry in the Cosmos is due
to the propagation of fermions in a non-trivial, spherically asymmetric (and
hence Lorentz violating) gravitational background that may characterise the
epochs of the early universe. The background induces different dispersion
relations, hence populations, between fermions and antifermions, and thus CPT
Violation (CPTV) already in thermal equilibrium. Species populations may freeze
out leading to leptogenesis and baryogenesis. More specifically, after
reviewing some generic models of background-induced CPTV in early epochs of the
Universe, we consider a string-inspired scenario, in which the CPTV is
associated with a cosmological background with torsion provided by the
Kalb-Ramond (KR) antisymemtric tensor field of the string gravitational
multiplet. In a four-dimensional space time this field is dual to a
pseudoscalar ``axion-like'' field. The thermalising processes in this model are
(right-handed) Majorana neutrino-antineutrino oscillations, which are induced
in the presence of the KR axion background. These processes freeze out at a
(high) temperature $T_c >> m$, where $m$ is the Majorana neutrino mass, at
which the KR background goes to zero or is diminished significantly, through
appropriate phase transitions of the (string) universe. An additional, but
equally important, r\^ole, of the KR field is that its quantum fluctuations and
mixing with an ordinary axion, which couples to the Majorana neutrinos via
appropriate Yukawa couplings, can also lead to the generation of a Majorana
neutrino mass through quantum anomalies. This provides a novel way for
generating neutrino masses, independent of the traditional seesaw mechanism.
|
[{'version': 'v1', 'created': 'Sun, 30 Mar 2014 00:38:28 GMT'}]
|
2014-04-01
|
[array(['Mavromatos', 'Nick E.', ''], dtype=object)]
|
1,006 |
1210.2449
|
EPTCS
|
Chung-Hao Huang (National Taiwan University), Doron Peled (Bar Ilan
University), Sven Schewe (University of Liverpool), Farn Wang (National
Taiwan University)
|
Rapid Recovery for Systems with Scarce Faults
|
In Proceedings GandALF 2012, arXiv:1210.2028
|
EPTCS 96, 2012, pp. 15-28
|
10.4204/EPTCS.96.2
| null |
cs.SY
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Our goal is to achieve a high degree of fault tolerance through the control
of a safety critical systems. This reduces to solving a game between a
malicious environment that injects failures and a controller who tries to
establish a correct behavior. We suggest a new control objective for such
systems that offers a better balance between complexity and precision: we seek
systems that are k-resilient. In order to be k-resilient, a system needs to be
able to rapidly recover from a small number, up to k, of local faults
infinitely many times, provided that blocks of up to k faults are separated by
short recovery periods in which no fault occurs. k-resilience is a simple but
powerful abstraction from the precise distribution of local faults, but much
more refined than the traditional objective to maximize the number of local
faults. We argue why we believe this to be the right level of abstraction for
safety critical systems when local faults are few and far between. We show that
the computational complexity of constructing optimal control with respect to
resilience is low and demonstrate the feasibility through an implementation and
experimental results.
|
[{'version': 'v1', 'created': 'Tue, 9 Oct 2012 00:53:01 GMT'}]
|
2012-10-10
|
[array(['Huang', 'Chung-Hao', '', 'National Taiwan University'],
dtype=object)
array(['Peled', 'Doron', '', 'Bar Ilan\n University'], dtype=object)
array(['Schewe', 'Sven', '', 'University of Liverpool'], dtype=object)
array(['Wang', 'Farn', '', 'National\n Taiwan University'], dtype=object)]
|
1,007 |
0911.2613
|
Anders Basboll
|
Anders Basboll
|
SUSY Flat Directions -- to get a VEV or not?
|
Comments: 10 pages. To appear in the Proceedings from Invisible
Universe International Conference (Paris 2009). AIP Conference Proceedings
|
AIP Conf.Proc.1241:477-486,2010
|
10.1063/1.3462674
| null |
hep-ph astro-ph.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We investigate the potential of SUSY flat directions (FDs). Large FD vacuum
expectation values (VEVs) can delay thermalisation and solve the gravitino
problem - if FDs decay perturbatively. This depends on how many and which
directions get the VEVs. Recently the decay of the FDs have been studied with
the VEVs as input. Here we look at how the VEVs come about -- statistically and
analytically.
|
[{'version': 'v1', 'created': 'Fri, 13 Nov 2009 13:54:32 GMT'}]
|
2014-11-20
|
[array(['Basboll', 'Anders', ''], dtype=object)]
|
1,008 |
1303.4348
|
Benjamin Recht
|
Gongguo Tang and Badri Narayan Bhaskar and Benjamin Recht
|
Near Minimax Line Spectral Estimation
|
25 pages, 12 figures. Added a numerical experiments section
| null | null | null |
cs.IT math.IT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
This paper establishes a nearly optimal algorithm for estimating the
frequencies and amplitudes of a mixture of sinusoids from noisy equispaced
samples. We derive our algorithm by viewing line spectral estimation as a
sparse recovery problem with a continuous, infinite dictionary. We show how to
compute the estimator via semidefinite programming and provide guarantees on
its mean-square error rate. We derive a complementary minimax lower bound on
this estimation rate, demonstrating that our approach nearly achieves the best
possible estimation error. Furthermore, we establish bounds on how well our
estimator localizes the frequencies in the signal, showing that the
localization error tends to zero as the number of samples grows. We verify our
theoretical results in an array of numerical experiments, demonstrating that
the semidefinite programming approach outperforms two classical spectral
estimation techniques.
|
[{'version': 'v1', 'created': 'Mon, 18 Mar 2013 18:19:38 GMT'}
{'version': 'v2', 'created': 'Mon, 1 Apr 2013 16:07:02 GMT'}]
|
2013-04-02
|
[array(['Tang', 'Gongguo', ''], dtype=object)
array(['Bhaskar', 'Badri Narayan', ''], dtype=object)
array(['Recht', 'Benjamin', ''], dtype=object)]
|
1,009 |
astro-ph/0103499
|
Christian Hettlage
|
Christian Hettlage and Karl Mannheim
|
High Energy Neutrino Fluxes from Cosmic Accelerators
|
4 pages, 2 figures, to appear in the Proceedings of the XXIst Moriond
Workshop 'Very High Energy Phenomena in the Universe', Les Arcs, France,
January 20-27 2001
| null | null | null |
astro-ph hep-ph
| null |
We constrain high-energy neutrino fluxes with the observed cosmic ray and
gamma ray fluxes, include flavor oscillations and propagation through Earth,
and show that blazars could possibly be detected by cubic-kilometer neutrino
telescopes.
|
[{'version': 'v1', 'created': 'Thu, 29 Mar 2001 16:54:36 GMT'}]
|
2007-05-23
|
[array(['Hettlage', 'Christian', ''], dtype=object)
array(['Mannheim', 'Karl', ''], dtype=object)]
|
1,010 |
1903.04554
|
Ali Rahmati
|
Ali Rahmati, Seyyedali Hosseinalipour, Huaiyu Dai
|
Optimal Time Allocation in VANETs Advertising: A Price-based Approach
using Stackelberg Game
|
6 pages, 4 figures
| null | null | null |
cs.GT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Vehicular ad-hoc networks (VANETs) have recently attracted a lot of attention
due to their immense potentials and applications. Wide range of coverage and
accessibility to end users make VANETs a good target for commercial companies.
In this paper, we consider a scenario in which advertising companies aim to
disseminate their advertisements in different areas of a city by utilizing
VANETs infrastructure. These companies compete for renting the VANETs
infrastructure to spread their advertisements. We partition the city map into
different blocks, and consider a manager for all the blocks who is in charge of
splitting the time between interested advertising companies. Each advertising
company (AdC) is charged proportional to the allocated time. In order to find
the best time splitting between AdCs, we propose a Stackelberg game scheme in
which the block manager assigns the companies to the blocks and imposes the
renting prices to different companies in order to maximize its own profit.
Based on this, AdCs request the amount of time they desire to rent the
infrastructure in order to maximize their utilities. To obtain the Stackelberg
equilibrium of the game, a mixed integer nonlinear optimization problem is
solved using the proposed optimal and sub-optimal algorithms. The simulation
results demonstrate that the sub-optimal algorithm approaches the optimal one
in performance with lower complexity.
|
[{'version': 'v1', 'created': 'Mon, 11 Mar 2019 19:21:54 GMT'}]
|
2019-03-13
|
[array(['Rahmati', 'Ali', ''], dtype=object)
array(['Hosseinalipour', 'Seyyedali', ''], dtype=object)
array(['Dai', 'Huaiyu', ''], dtype=object)]
|
1,011 |
2301.03059
|
Alessandro Siciliano
|
Giusy Monzillo, Tim Penttila, Alessandro Siciliano
|
Eggs in finite projective spaces and unitals in translation planes
| null | null | null | null |
math.CO
|
http://creativecommons.org/licenses/by/4.0/
|
Inspired by the connection between ovoids and unitals arising from the
Buekenhout construction in the Andr\'e/Bruck-Bose representation of translation
planes of dimension at most two over their kernel, and since eggs of
PG(4m-1,q), m>=1, are a generalization of ovoids, we explore the relation
between eggs and unitals in translation planes of higher dimension over their
kernel. By investigating such a relationship, we construct a unital in the
Dickson semifield plane of order 3^{10}, which is represented in PG(20,3) by a
cone whose base is a set of points constructed from the dual of the
Penttila-Williams egg in PG(19,3). This unital is not polar; so, up to the
knowledge of the authors, it seems to be a new unital in such a plane.
|
[{'version': 'v1', 'created': 'Sun, 8 Jan 2023 15:15:59 GMT'}]
|
2023-01-10
|
[array(['Monzillo', 'Giusy', ''], dtype=object)
array(['Penttila', 'Tim', ''], dtype=object)
array(['Siciliano', 'Alessandro', ''], dtype=object)]
|
1,012 |
2008.07756
|
Ying Sui
|
Ying Sui, Huimin Yu
|
Singularity formation for compressible Euler equations with
time-dependent damping
|
19 pages
| null | null | null |
math.AP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper, we consider the compressible Euler equations with
time-dependent damping \frac{\a}{(1+t)^\lambda}u in one space dimension. By
constructing 'decoupled' Riccati type equations for smooth solutions, we
provide some sufficient conditions under which the classical solutions must
break down in finite time. As a byproduct, we show that the derivatives blow
up, somewhat like the formation of shock wave, if the derivatives of initial
data are appropriately large at a point even when the damping coefficient goes
to infinity with a algebraic growth rate. We study the case \lambda\neq1 and
\lambda=1 respectively, moreover, our results have no restrictions on the size
of solutions and the positivity/monotonicity of the initial Riemann invariants.
In addition, for 1<\gamma<3 we provide time-dependent lower bounds on density
for arbitrary classical solutions, without any additional assumptions on the
initial data.
|
[{'version': 'v1', 'created': 'Tue, 18 Aug 2020 06:16:28 GMT'}]
|
2020-08-19
|
[array(['Sui', 'Ying', ''], dtype=object)
array(['Yu', 'Huimin', ''], dtype=object)]
|
1,013 |
2208.12347
|
Eugenio Moggi
|
Amin Farjudian, Eugenio Moggi
|
Robustness, Scott Continuity, and Computability
|
26 pages
| null | null | null |
cs.LO
|
http://creativecommons.org/licenses/by-nc-nd/4.0/
|
Robustness is a property of system analyses, namely monotonic maps from the
complete lattice of subsets of a (system's state) space to the two-point
lattice. The definition of robustness requires the space to be a metric space.
Robust analyses cannot discriminate between a subset of the metric space and
its closure, therefore one can restrict to the complete lattice of closed
subsets. When the metric space is compact, the complete lattice of closed
subsets ordered by reverse inclusion is w-continuous and robust analyses are
exactly the Scott continuous maps. Thus, one can also ask whether a robust
analysis is computable (with respect to a countable base). The main result of
this paper establishes a relation between robustness and Scott continuity, when
the metric space is not compact. The key idea is to replace the metric space
with a compact Hausdorff space, and relate robustness and Scott continuity by
an adjunction between the complete lattice of closed subsets of the metric
space and the w-continuous lattice of closed subsets of the compact Hausdorff
space. We demonstrate the applicability of this result with several examples
involving Banach spaces.
|
[{'version': 'v1', 'created': 'Thu, 25 Aug 2022 21:14:59 GMT'}]
|
2022-08-29
|
[array(['Farjudian', 'Amin', ''], dtype=object)
array(['Moggi', 'Eugenio', ''], dtype=object)]
|
1,014 |
1003.0328
|
Roland Gillen Mr
|
Roland Gillen, Marcel Mohr, Janina Maultzsch
|
Symmetry properties of vibrational modes in graphene nanoribbons
|
10 pages, 5 figures
|
Phys. Rev. B 81, 205426 (2010)
|
10.1103/PhysRevB.81.205426
| null |
cond-mat.mes-hall
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We present symmetry properties of the lattice vibrations of graphene
nanoribbons with pure armchair (AGNR) and zigzag edges (ZGNR). In
non-symmorphic nanoribbons the phonon modes at the edge of the Brillouin zone
are twofold degenerate, whereas the phonon modes in symmorphic nanoribbons are
non-degenerate. We identified the Raman-active and infrared-active modes. We
predict 3N and 3(N+1) Raman-active modes for N-ZGNRs and N-AGNRs, respectively
(N is the number of dimers per unit cell). These modes can be used for the
experimental characterization of graphene nanoribbons. Calculations based on
density functional theory suggest that the frequency splitting of the LO and TO
in AGNRs (corresponding to the E2g mode in graphene) exhibits characteristic
width and family dependence. Further, all graphene nanoribbons have a
Raman-active breathing-like mode, the frequency of which is inversely
proportional to the nanoribbon width and thus might be used for experimental
determination of the width of graphene nanoribbons.
|
[{'version': 'v1', 'created': 'Mon, 1 Mar 2010 16:18:31 GMT'}]
|
2015-05-18
|
[array(['Gillen', 'Roland', ''], dtype=object)
array(['Mohr', 'Marcel', ''], dtype=object)
array(['Maultzsch', 'Janina', ''], dtype=object)]
|
1,015 |
1905.04064
|
Ermin Sakic
|
Ermin Sakic, Nemanja Deric, Endri Goshi, Wolfgang Kellerer
|
P4BFT: Hardware-Accelerated Byzantine-Resilient Network Control Plane
|
Accepted for publication at IEEE Globecom 2019 CQRM
| null | null | null |
cs.NI cs.DC
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Byzantine Fault Tolerance (BFT) enables correct operation of distributed,
i.e., replicated applications in the face of malicious take-over and
faulty/buggy individual instances. Recently, BFT designs have gained traction
in the context of Software Defined Networking (SDN). In SDN, controller
replicas are distributed and their state replicated for high availability
purposes. Malicious controller replicas, however, may destabilize the control
plane and manipulate the data plane, thus motivating the BFT requirement.
Nonetheless, deploying BFT in practice comes at a disadvantage of increased
traffic load stemming from replicated controllers, as well as a requirement for
proprietary switch functionalities, thus putting strain on switches' control
plane where particular BFT actions must be executed in software.
P4BFT leverages an optimal strategy to decrease the total amount of messages
transmitted to switches that are the configuration targets of SDN controllers.
It does so by means of message comparison and deduction of correct messages in
the determined optimal locations in the data plane. In terms of the incurred
control plane load, our P4-based data plane extensions outperform the existing
solutions by ~33.2% and ~40.2% on average, in random 128-switch and
Fat-Tree/Internet2 topologies, respectively. To validate the correctness and
performance gains of P4BFT, we deploy bmv2 and Netronome Agilio SmartNIC-based
topologies. The advantages of P4BFT can thus be reproduced both with software
switches and "commodity" P4-enabled hardware. A hardware-accelerated controller
packet comparison procedure results in an average 96.4% decrease in processing
delay per request compared to existing software approaches.
|
[{'version': 'v1', 'created': 'Fri, 10 May 2019 10:46:28 GMT'}
{'version': 'v2', 'created': 'Wed, 14 Aug 2019 09:36:55 GMT'}]
|
2019-08-15
|
[array(['Sakic', 'Ermin', ''], dtype=object)
array(['Deric', 'Nemanja', ''], dtype=object)
array(['Goshi', 'Endri', ''], dtype=object)
array(['Kellerer', 'Wolfgang', ''], dtype=object)]
|
1,016 |
1406.6650
|
Cristina Costantini
|
Cristina Costantini and Thomas G. Kurtz
|
Viscosity methods giving uniqueness for martingale problems
| null |
Electronic Journal of Probability (2015) Volume 20, Number 67,
Pages 1-27
|
10.1214/EJP.v20-3624
| null |
math.PR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Let $E$ be a complete, separable metric space and $A$ be an operator on
$C_b(E)$. We give an abstract definition of viscosity sub/supersolution of the
resolvent equation $\lambda u-Au=h$ and show that, if the comparison principle
holds, then the martingale problem for $A$ has a unique solution. Our proofs
work also under two alternative definitions of viscosity sub/supersolution
which might be useful, in particular, in infinite dimensional spaces, for
instance to study measure-valued processes.
We prove the analogous result for stochastic processes that must satisfy
boundary conditions, modeled as solutions of constrained martingale problems.
In the case of reflecting diffusions in $D\subset {\bf R}^d$, our assumptions
allow $ D$ to be nonsmooth and the direction of reflection to be degenerate.
Two examples are presented: A diffusion with degenerate oblique direction of
reflection and a class of jump diffusion processes with infinite variation jump
component and possibly degenerate diffusion matrix.
|
[{'version': 'v1', 'created': 'Wed, 25 Jun 2014 17:39:32 GMT'}
{'version': 'v2', 'created': 'Wed, 18 Nov 2015 12:59:10 GMT'}]
|
2015-11-19
|
[array(['Costantini', 'Cristina', ''], dtype=object)
array(['Kurtz', 'Thomas G.', ''], dtype=object)]
|
1,017 |
1910.05583
|
Marcel Ausloos
|
Olgica Nedic, Ivana Drvenica, Marcel Ausloos, and Aleksandar Dekanski
|
Efficiency in managing peer-review of scientific manuscripts -- editors'
perspective
|
28 refs. ; 4 Tables; 5 figures; 21 pages
|
Journal of Serbian Chemical Society 83(12), 1391-1405 (2018)
|
10.2298/JSC180531066N
| null |
cs.DL cs.DS physics.soc-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The purpose of this paper is to introduce a model for measuring the
efficiency in managing peer-review of scientific manuscripts by editors. The
approach employed is based on the assumption that the editorial aim is to
manage publication with high efficiency, employing the least amount of
editorial resources. Efficiency is defined in this research as a measure based
on 7 variables. An on-line survey was constructed and editors of journals
originating from Serbia regularly publishing articles in the field of chemistry
were invited to participate. An evaluation of the model is given based on
responses from 24 journals and 50 editors. With this investigation we aimed to
contribute to our understanding of the peer-review process and, possibly, offer
a tool to improve the "efficiency" in journal editing. The proposed protocol
may be adapted by other journals in order to assess the managing potential of
editors.
|
[{'version': 'v1', 'created': 'Sat, 12 Oct 2019 15:54:46 GMT'}]
|
2019-10-15
|
[array(['Nedic', 'Olgica', ''], dtype=object)
array(['Drvenica', 'Ivana', ''], dtype=object)
array(['Ausloos', 'Marcel', ''], dtype=object)
array(['Dekanski', 'Aleksandar', ''], dtype=object)]
|
1,018 |
1209.6586
|
Jan T. Sobczyk
|
Jorge G. Morfin, Juan Nieves, Jan T. Sobczyk
|
Recent Developments in Neutrino/Antineutrino - Nucleus Interactions
|
37 pages, 7 figures, to be published in Advances in High Energy
Physics
| null | null |
FERMILAB-PUB-12-529-PPD
|
hep-ex hep-ph nucl-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Recent experimental results and developments in the theoretical treatment of
neutrino-nucleus interactions in the energy range of 1-10 GeV are discussed.
Difficulties in extracting neutrino-nucleon cross sections from
neutrino-nucleus scattering data are explained and significance of
understanding nuclear effects for neutrino oscillation experiments is stressed.
Detailed discussions of the status of two-body current contribution in the
kinematic region dominated by quasi-elastic scattering and specific features of
partonic nuclear effects in weak DIS scattering are presented.
|
[{'version': 'v1', 'created': 'Fri, 28 Sep 2012 17:58:00 GMT'}]
|
2012-10-01
|
[array(['Morfin', 'Jorge G.', ''], dtype=object)
array(['Nieves', 'Juan', ''], dtype=object)
array(['Sobczyk', 'Jan T.', ''], dtype=object)]
|
1,019 |
1101.0055
|
Yves Grandati
|
Yves Grandati (FCN)
|
Solvable rational extensions of the isotonic oscillator
| null |
Annals Phys.326:2074-2090,2011
|
10.1016/j.aop.2011.03.001
| null |
math-ph math.MP quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Combining recent results on rational solutions of the Riccati-Schr\"odinger
equations for shape invariant potentials to the finite difference B\"acklund
algorithm and specific symmetries of the isotonic potential, we show that it is
possible to generate the three infinite sets (L1, L2 and L3 families) of
regular rational solvable extensions of this potential in a very direct and
transparent way.
|
[{'version': 'v1', 'created': 'Thu, 30 Dec 2010 08:26:12 GMT'}
{'version': 'v2', 'created': 'Thu, 13 Jan 2011 13:24:40 GMT'}]
|
2011-06-16
|
[array(['Grandati', 'Yves', '', 'FCN'], dtype=object)]
|
1,020 |
2207.04359
|
Carlos Ceja-Espinosa
|
Carlos Ceja-Espinosa, Mehrdad Pirnia, Claudio A. Ca\~nizares
|
A Privacy-Preserving Energy Management System for Cooperative
Multi-Microgrid Networks
|
In proceedings of the 11th Bulk Power Systems Dynamics and Control
Symposium (IREP 2022), July 25-30, 2022, Banff, Canada
| null | null |
IREP2022-17
|
eess.SY cs.SY
|
http://creativecommons.org/licenses/by/4.0/
|
This paper presents an Energy Management System (EMS) that considers power
exchanges between a set of interconnected microgrids (MGs) and the main grid,
in the context of Multi-MG (MMG) systems. The model is first formulated as a
centralized optimization problem, which is then decomposed into subproblems
corresponding to each MG, using Lagrangian relaxation, and solved through a
distributed approach using a subgradient method. The proposed model determines
the power exchanges minimizing the operation cost of each MG, considering grid
constraints and preserving the privacy of each MG by not revealing their
generation cost and demand information. The distributed approach is validated
with respect to the centralized problem, and various case studies are presented
to demonstrate the performance of the proposed approach, comparing the costs of
the MGs operating individually and cooperatively. The results show that all MGs
in the MMG system improve their cost as consequence of the power exchanges,
thus demonstrating the advantages of interconnecting MGs.
|
[{'version': 'v1', 'created': 'Sun, 10 Jul 2022 01:30:21 GMT'}]
|
2022-07-12
|
[array(['Ceja-Espinosa', 'Carlos', ''], dtype=object)
array(['Pirnia', 'Mehrdad', ''], dtype=object)
array(['Cañizares', 'Claudio A.', ''], dtype=object)]
|
1,021 |
0807.2468
|
Christopher Search
|
Ivana Djuric, Marko Zivkovic, Chris P. Search, and Greg Recine
|
Quantum bistability and spin current shot noise of a single quantum dot
coupled to an optical microcavity
| null | null |
10.1103/PhysRevB.78.195316
| null |
cond-mat.mes-hall
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Here we explore spin dependent quantum transport through a single quantum dot
coupled to an optical microcavity. The spin current is generated by electron
tunneling between a single doped reservoir and the dot combined with intradot
spin flip transitions induced by a quantized cavity mode. In the limit of
strong Coulomb blockade, this model is analogous to the Jaynes-Cummings model
in quantum optics and generates a pure spin current in the absence of any
charge current. Earlier research has shown that in the classical limit where a
large number of such dots interact with the cavity field, the spin current
exhibits bistability as a function of the laser amplitude that drives the
cavity. We show that in the limit of a single quantum dot this bistability
continues to be present in the intracavity photon statistics. Signatures of the
bistable photon statistics manifest themselves in the frequency dependent shot
noise of the spin current despite the fact that the quantum mechanical average
spin current no longer exhibits bistability. Besides having significance for
future quantum dot based optoelectronic devices, our results shed light on the
relation between bistability, which is traditionally viewed as a classical
effect, and quantum mechanics.
|
[{'version': 'v1', 'created': 'Tue, 15 Jul 2008 21:42:50 GMT'}]
|
2009-11-13
|
[array(['Djuric', 'Ivana', ''], dtype=object)
array(['Zivkovic', 'Marko', ''], dtype=object)
array(['Search', 'Chris P.', ''], dtype=object)
array(['Recine', 'Greg', ''], dtype=object)]
|
1,022 |
cond-mat/9507106
|
Ryusuke Ikeda
|
Ryusuke Ikeda (Dept. of Phys., Kyoto Univ., Japan)
|
Hydrodynamics and Nonlocal Conductivities in Vortex States of Type II
Superconductors
|
12 pages, no figures, to appear in J. Phys. Soc. Jpn. in October,
1995
| null |
10.1143/JPSJ.64.3925
| null |
cond-mat
| null |
A hydrodynamical description for vortex states in type II superconductors is
presented based on the time-dependent Ginzburg-Landau equation (TDGL). In
contrast to the familiar extension of a single vortex dynamics based on the
force balance, our description is consistent with the known hydrodynamics of a
rotating neutral superfluid and correctly includes informations on the
Goldstone mode. Further it enables one to examine nonlocal conductivities
perpendicular to the magnetic field in terms of Kubo formula. The nonlocal
conductivities deviate from the usual vortex flow expressions typically when
the nonlocality parallel to the field becomes weaker than the perpendicular one
measuring a degree of positional correlations, and, for instance, the
superconducting contribution of dc Hall conductivity nonlocal only in
directions perpendicular to the field becomes vanishingly small in the
situations with large shear viscosity, leading to an experimentally measurable
relation $\rho_{xy} \sim {\rho_{xx}^2}$ among the total resistivity components.
Other situations are also discussed on the basis of the resulting expressions.
|
[{'version': 'v1', 'created': 'Tue, 25 Jul 1995 05:50:31 GMT'}]
|
2009-10-28
|
[array(['Ikeda', 'Ryusuke', '', 'Dept. of Phys., Kyoto Univ., Japan'],
dtype=object) ]
|
1,023 |
cond-mat/0103501
|
John Singleton
|
Charles Mielke, John Singleton, Moon-Sun Nam, Neil Harrison, C.C.
Agosta, B. Fravel and L. K. Montgomery
|
Superconducting properties and Fermi-surface topology of the
quasi-two-dimensional organic superconductor $\lambda$-(BETS)$_{2}$GaCl$_{4}$
|
24 pages 10 figures
| null |
10.1088/0953-8984/13/36/308
| null |
cond-mat.supr-con cond-mat.dis-nn cond-mat.str-el
| null |
The Fermi surface topology of the organic superconductor \lbets has been
determined using the Shubnikov-de Haas and magnetic breakdown effects and
angle-dependent magnetoresistance oscillations. The former experiments were
carried out in pulsed fields of up to 60 T, whereas the latter employed
quasistatic fields of up to 30 T. All of these data show that the Fermi-surface
topology of \lbets is very similar to that of the most heavily-studied organic
superconductor, \cuscn, except in one important respect; the interplane
transfer integral in \lbets is a factor $\sim 10$ larger than that in \cuscn .
The increased three-dimensionality of \lbets is manifested in radiofrequency
penetration-depth measurements, which show a clear dimensional crossover in the
behaviour of $H_{c2}(T)$. The radiofrequency measurements have also been used
to extract the Labusch parameter determining the fluxoid interactions as a
function of temperature, and to map the flux-lattice melting curve.
|
[{'version': 'v1', 'created': 'Fri, 23 Mar 2001 22:13:40 GMT'}
{'version': 'v2', 'created': 'Tue, 31 Jul 2001 23:04:45 GMT'}]
|
2009-11-07
|
[array(['Mielke', 'Charles', ''], dtype=object)
array(['Singleton', 'John', ''], dtype=object)
array(['Nam', 'Moon-Sun', ''], dtype=object)
array(['Harrison', 'Neil', ''], dtype=object)
array(['Agosta', 'C. C.', ''], dtype=object)
array(['Fravel', 'B.', ''], dtype=object)
array(['Montgomery', 'L. K.', ''], dtype=object)]
|
1,024 |
1507.03492
|
Mario Collura
|
Mario Collura, Pasquale Calabrese and Fabian H. L. Essler
|
Quantum quench within the gapless phase of the spin-1/2 Heisenberg XXZ
spin-chain
|
27 pages, 13 figures
|
Phys. Rev. B 92, 125131 (2015)
|
10.1103/PhysRevB.92.125131
| null |
cond-mat.stat-mech cond-mat.str-el quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We consider an interaction quench in the critical spin-1/2 Heisenberg XXZ
chain. We numerically compute the time evolution of the two-point correlation
functions of spin operators in the thermodynamic limit and compare the results
to predictions obtained in the framework of the Luttinger liquid approximation.
We find that the transverse correlation function $\langle
S^x_jS^x_{j+\ell}\rangle$ agrees with the Luttinger model prediction to a
surprising level of accuracy. The agreement for the longitudinal two-point
function $\langle S^z_jS^z_{j+\ell}\rangle$ is found to be much poorer. We
speculate that this difference between transverse and longitudinal correlations
has its origin in the locality properties of the respective spin operator with
respect to the underlying fermionic modes.
|
[{'version': 'v1', 'created': 'Mon, 13 Jul 2015 15:24:30 GMT'}]
|
2015-09-23
|
[array(['Collura', 'Mario', ''], dtype=object)
array(['Calabrese', 'Pasquale', ''], dtype=object)
array(['Essler', 'Fabian H. L.', ''], dtype=object)]
|
1,025 |
2006.05495
|
Lucio Santi
|
Lucio Santi, Joaqu\'in Fern\'andez, Ernesto Kofman, Rodrigo Castro
|
retQSS: A Novel Methodology for Efficient Modeling and Simulation of
Particle Systems in Reticulated Geometries
|
Accepted for publication in Computer Physics Communications
|
Comput. Phys. Commun. 270 (2022) 108157
|
10.1016/j.cpc.2021.108157
| null |
physics.comp-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
This work presents retQSS, a novel methodology for efficient modeling and
simulation of particle systems in reticulated meshed geometries. On the
simulation side, retQSS profits from the discrete-event nature of Quantized
State System (QSS) methods, which enable efficient particle tracking algorithms
that are agnostic of the application domain. On the modeling side, retQSS
relies on the standardized Modelica modeling language, yielding compact and
elegant specifications of hybrid (continuous/discrete) dynamic systems.
Combined together, these features offer a sound, general-purpose framework for
modeling and simulation of particle systems. We show how the state-events that
arise when particles interact with a reticulated mesh are seamlessly translated
into easily tractable time-events. The latter can substantially improve
simulation performance in scenarios where discontinuities dominate the
computational demand. We showcase the flexibility of our approach by addressing
four case studies arising from different application domains. Performance
studies revealed that retQSS can perform similarly to, and even outperform,
well-known domain-specific particle simulation toolkits while offering a clear
and sound accuracy control interface.
|
[{'version': 'v1', 'created': 'Tue, 9 Jun 2020 20:31:34 GMT'}
{'version': 'v2', 'created': 'Wed, 15 Sep 2021 01:47:37 GMT'}
{'version': 'v3', 'created': 'Thu, 16 Sep 2021 03:39:16 GMT'}]
|
2021-09-17
|
[array(['Santi', 'Lucio', ''], dtype=object)
array(['Fernández', 'Joaquín', ''], dtype=object)
array(['Kofman', 'Ernesto', ''], dtype=object)
array(['Castro', 'Rodrigo', ''], dtype=object)]
|
1,026 |
2303.06411
|
Qiong Wu
|
Hongbiao Zhu, Qiong Wu, Qiang Fan, Pingyi Fan, Jiangzhou Wang, and
Zhengquan Li
|
Deep Reinforcement Learning Based Power Allocation for Minimizing AoI
and Energy Consumption in MIMO-NOMA IoT Systems
| null | null | null | null |
cs.IT cs.AI math.IT
|
http://creativecommons.org/licenses/by/4.0/
|
Multi-input multi-out and non-orthogonal multiple access (MIMO-NOMA)
internet-of-things (IoT) systems can improve channel capacity and spectrum
efficiency distinctly to support the real-time applications. Age of information
(AoI) is an important metric for real-time application, but there is no
literature have minimized AoI of the MIMO-NOMA IoT system, which motivates us
to conduct this work. In MIMO-NOMA IoT system, the base station (BS) determines
the sample collection requirements and allocates the transmission power for
each IoT device. Each device determines whether to sample data according to the
sample collection requirements and adopts the allocated power to transmit the
sampled data to the BS over MIMO-NOMA channel. Afterwards, the BS employs
successive interference cancelation (SIC) technique to decode the signal of the
data transmitted by each device. The sample collection requirements and power
allocation would affect AoI and energy consumption of the system. It is
critical to determine the optimal policy including sample collection
requirements and power allocation to minimize the AoI and energy consumption of
MIMO-NOMA IoT system, where the transmission rate is not a constant in the SIC
process and the noise is stochastic in the MIMO-NOMA channel. In this paper, we
propose the optimal power allocation to minimize the AoI and energy consumption
of MIMO- NOMA IoT system based on deep reinforcement learning (DRL). Extensive
simulations are carried out to demonstrate the superiority of the optimal power
allocation.
|
[{'version': 'v1', 'created': 'Sat, 11 Mar 2023 14:09:46 GMT'}]
|
2023-03-14
|
[array(['Zhu', 'Hongbiao', ''], dtype=object)
array(['Wu', 'Qiong', ''], dtype=object)
array(['Fan', 'Qiang', ''], dtype=object)
array(['Fan', 'Pingyi', ''], dtype=object)
array(['Wang', 'Jiangzhou', ''], dtype=object)
array(['Li', 'Zhengquan', ''], dtype=object)]
|
1,027 |
1202.3000
|
Sudarshan Tiwari
|
Sudarshan Tiwari, Axel Klar, Steffen Hardt
|
Simulation of a moving liquid droplet inside a rarefied gas region
| null | null | null | null |
math.NA physics.flu-dyn
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study the dynamics of a liquid droplet inside a gas over a large range of
the Knudsen numbers. The moving liquid droplet is modeled by the incompressible
Navier-Stokes equations, the surrounding rarefied gas by the Boltzmann
equation. The interface boundary conditions between the gas and liquid phases
are derived. The incompressible Navier-Stokes equations are solved by a
meshfree Lagrangian particle method called Finite Pointset Method (FPM), and
the Boltzmann equation by a DSMC type of particle method. To validiate the
coupled solutions of the Boltzmann and the incompressible Navier-Stokes
equations we have further solved the compressible and the incompressible
Navier-Stokes equations in the gas and liquid phases, respectively. In the
latter case both the compressible and the incompressible Navier-Stokes
equations are also solved by the FPM. In the continuum regime the coupled
solutions obtained from the Boltzmann and the incompressible Navier-Stokes
equations match with the solutions obtained from the compressible and the
incompressible Navier-Stokes equations. In this paper, we presented solutions
in one-dimensional physical space.
|
[{'version': 'v1', 'created': 'Tue, 14 Feb 2012 11:14:55 GMT'}]
|
2012-02-15
|
[array(['Tiwari', 'Sudarshan', ''], dtype=object)
array(['Klar', 'Axel', ''], dtype=object)
array(['Hardt', 'Steffen', ''], dtype=object)]
|
1,028 |
1612.00513
|
Kyle Stewart
|
Kyle R. Stewart (CBU)
|
Gas Accretion and Angular Momentum
|
22 pages, 3 figures. Invited review to appear in Gas Accretion onto
Galaxies, Astrophysics and Space Science Library, eds. A. J. Fox & R. Dav\'e,
to be published by Springer
|
ASSL, 430, 249S, 2017
|
10.1007/978-3-319-52512-9_11
| null |
astro-ph.GA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this chapter, we review the role of gas accretion to the acquisition of
angular momentum, both in galaxies and in their gaseous halos. We begin by
discussing angular momentum in dark matter halos, with a brief review of tidal
torque theory and the importance of mergers, followed by a discussion of the
canonical picture of galaxy formation within this framework, where halo gas is
presumed to shock-heat to the virial temperature of the halo, following the
same spin distribution as the dark matter halo before cooling to the center of
the halo to form a galaxy there. In the context of recent observational
evidence demonstrating the presence of high angular momentum gas in galaxy
halos, we review recent cosmological hydrodynamic simulations that have begun
to emphasize the role of "cold flow" accretion---anisotropic gas accretion
along cosmic filaments that does not shock-heat before sinking to the central
galaxy. We discuss the implications of these simulations, reviewing a number of
recent developments in the literature, and suggest a revision to the canonical
model as it relates to the expected angular momentum content of gaseous halos
around galaxies.
|
[{'version': 'v1', 'created': 'Thu, 1 Dec 2016 23:19:31 GMT'}]
|
2017-08-25
|
[array(['Stewart', 'Kyle R.', '', 'CBU'], dtype=object)]
|
1,029 |
1906.01390
|
Thomas Giletti
|
Thomas Giletti (IECL), Hiroshi Matano (MIMS)
|
Existence and uniqueness of propagating terraces
|
Communications in Contemporary Mathematics, World Scientific
Publishing, In press
| null | null | null |
math.AP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
This work focuses on dynamics arising from reaction-diffusion equations ,
where the profile of propagation is no longer characterized by a single front,
but by a layer of several fronts which we call a propagating terrace. This
means, intuitively, that transition from one equilibrium to another may occur
in several steps, that is, successive phases between some intermediate
stationary states. We establish a number of properties on such propagating
terraces in a one-dimensional periodic environment, under very wide and generic
conditions. We are especially concerned with their existence, uniqueness, and
their spatial structure. Our goal is to provide insight into the intricate
dynamics arising from multistable non-linearities.
|
[{'version': 'v1', 'created': 'Tue, 4 Jun 2019 13:01:13 GMT'}]
|
2019-06-05
|
[array(['Giletti', 'Thomas', '', 'IECL'], dtype=object)
array(['Matano', 'Hiroshi', '', 'MIMS'], dtype=object)]
|
1,030 |
math/9810134
|
Amnon Yekutieli
|
Amnon Yekutieli
|
Dualizing Complexes, Morita Equivalence and the Derived Picard Group of
a Ring
|
22 pages, AMALaTeX, to appear in: J. London Math. Soc
| null | null | null |
math.RA math.RT
| null |
Two rings A and B are said to be derived Morita equivalent if their derived
categories of modules are equivalent. By results of Rickard, if A and B are
derived Morita equivalent algebras over a field k, then there is a complex of
bimodules T s.t. the derived tensor product with T is an equivalence. The
complex T is called a tilting complex. When B = A the isomorphism classes of
tilting complexes T form the derived Picard group DPic(A).
We prove that when the algebra A is either local or commutative, then any
derived Morita equivalent algebra B is actually Morita equivalent. So we can
compute DPic(A) in these cases.
Assume A is noetherian. Dualizing complexes over A were defined by the author
some years ago. These are complexes of bimodules which generalize the
commutative definition of Grothendieck. We prove that the group DPic(A)
classifies the set of isomorphism classes of dualizing complexes.
Finally we consider finite k-algebras. For the algebra A of upper triangular
2 x 2 matrices over k, we prove that t^{3} = s, where t, s are the classes in
DPic(A) of Hom_{k}(A, k) and A[1] respectively. In the Appendix by Elena
Kreines this result is generalized to upper triangular n x n matrices, and it
is shown that the relation t^{n + 1} = s^{n - 1} holds.
|
[{'version': 'v1', 'created': 'Thu, 22 Oct 1998 06:00:05 GMT'}]
|
2007-05-23
|
[array(['Yekutieli', 'Amnon', ''], dtype=object)]
|
1,031 |
2002.04394
|
Mario Mastriani
|
Mario Mastriani
|
Quantum Image Processing: the truth, the whole truth, and nothing but
the truth about its problems on internal image representation and outcomes
recovering
|
57 pages, 65 Figures, 3 Tables. Invited paper to 2020 Congress of
Physics, Asociacion Fisica Argentina (AFA). July 2-6, Bahia Blanca, Buenos
Aires, Argentina
| null | null | null |
quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper, three techniques of internal image-representation in a quantum
computer are compared: Flexible Representation of Quantum Images (FRQI), Novel
Enhanced Quantum Representation of digital images (NEQR), and Quantum Boolean
Image Processing (QBIP). All conspicuous technical items are considered in this
comparison for complete analysis: i) performance as Classical-to-Quantum
(Cl2Qu) interface, ii) characteristics of the employed qubits, iii) sparsity of
the used internal registers, iv) number and size of the required registers, v)
quality in the outcomes recovering, vi) number of required gates and its
consequent accumulated noise, vi) decoherence, and vii) fidelity. These
analyses and demonstrations are automatically extended to all variants of FRQI
and NEQR. This study demonstrated the practical infeasibility in the
implementation of FRQI and NEQR on a physical quantum computer (QPU), while
QBIP has proven to be extremely successful on a) the four main quantum
simulators on the cloud, b) two QPUs, and c) optical circuits from three labs.
Moreover, QBIP also demonstrated its economy regarding the required resources
needed for its proper function and its great robustness (immunity to noise),
among other advantages, in fact, without any exceptions.
|
[{'version': 'v1', 'created': 'Thu, 6 Feb 2020 19:34:47 GMT'}
{'version': 'v2', 'created': 'Fri, 21 Feb 2020 19:35:07 GMT'}
{'version': 'v3', 'created': 'Wed, 24 Jun 2020 17:09:52 GMT'}]
|
2020-06-25
|
[array(['Mastriani', 'Mario', ''], dtype=object)]
|
1,032 |
cond-mat/0212024
|
Zhong Fang
|
Zhong Fang, Naoto Nagaosa, and Kiyoyuki Terakura
|
Anisotropic Optic Conductivities due to Spin and Orbital Orderings in
LaVO3 and YVO3: First-Principles Studies
|
6 pages, 3 figures, accepted by PRB
|
Phys. Rev. B 67, 035101 (2003).
|
10.1103/PhysRevB.67.035101
| null |
cond-mat.str-el cond-mat.mtrl-sci
| null |
The anisotropy of low energy (0$\sim$5eV) optical excitations in strongly
correlated transition-metal oxides is closely related to the spin and orbital
orderings. The recent successes of LDA+$U$ method in describing the magnetic
and electronic structures enable us to calculate the optical conductivity from
first-principles. The LaVO$_3$ and YVO$_3$, both of which have $3d^2$
configuration and have various spin and orbital ordered phases at low
temperature, show distinct anisotropy in the optical spectra. The effects of
spin and orbital ordering on the anisotropy are studied in detail based on our
first-principles calculations. The experimental spectra of both compounds at
low temperature phases can be qualitatively explained with our calculations,
while the studies for the intermediate temperature phase of YVO$_3$ suggest the
substantial persistence of the low temperature phase at elevated temperature.
|
[{'version': 'v1', 'created': 'Mon, 2 Dec 2002 06:49:23 GMT'}]
|
2009-11-07
|
[array(['Fang', 'Zhong', ''], dtype=object)
array(['Nagaosa', 'Naoto', ''], dtype=object)
array(['Terakura', 'Kiyoyuki', ''], dtype=object)]
|
1,033 |
1911.02325
|
Gustavo Mata
|
Marcos Barrios and Gustavo Mata
|
On algebras of $\Omega^n$-finite and $\Omega^{\infty}$-infinite
representation type
| null | null | null | null |
math.RT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Co-Gorenstein algebras were introduced by A. Beligiannis in \cite{B}. In
\cite{KM}, the authors propose the following conjecture (Co-GC): if $\Omega^n
(\mod A)$ is extension closed for all $n \leq 1$, then $A$ is right
Co-Gorenstein, and they prove that the Generalized Nakayama Conjecture implies
the Co-GC, also that the Co-GC implies the Nakayama Conjecture. In this article
we characterize the subcategory $\Omega^{\infty}(\mod A)$ for algebras of
$\Omega^{n}$-finite representation type. As a consequence, we characterize when
a truncated path algebra is a Co-Gorenstein algebra in terms of its associated
quiver. We also study the behaviour of Artin algebras of
$\Omega^{\infty}$-infinite representation type. Finally, it is presented an
example of a non Gorenstein algebra of $\Omega^{\infty}$-infinite
representation type and an example of a finite dimensional algebra with
infinite $\phi$-dimension.
|
[{'version': 'v1', 'created': 'Wed, 6 Nov 2019 11:50:57 GMT'}
{'version': 'v2', 'created': 'Sat, 1 Apr 2023 18:31:14 GMT'}]
|
2023-04-04
|
[array(['Barrios', 'Marcos', ''], dtype=object)
array(['Mata', 'Gustavo', ''], dtype=object)]
|
1,034 |
2012.10520
|
Ralph Malein
|
Ralph N. E. Malein, Prince Khatri, Andrew J. Ramsay, Isaac J. Luxmoore
|
Stimulated emission depletion spectroscopy of color centers in hexagonal
boron nitride
| null |
ACS Photonics 2021, 8, 4, 1007-1012
|
10.1021/acsphotonics.0c01917
| null |
cond-mat.mes-hall
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We demonstrate the use of Stimulated Emission Depletion (STED) spectroscopy
to map the electron-optical-phonon sideband of the ground state of the
radiative transition of color centers in hexagonal boron nitride emitting at
2.0-2.2 eV, with in-plane linear polarization. The measurements are compared to
Photoluminescence of Excitation (PLE) spectra, that maps the
electron-optical-phonon sideband of the excited state. The main qualitative
difference is a red-shift in the longitudinal optical phonon peak associated
with $E_{1u}$ symmetry at the zone center. We argue that this is consistent
with recent findings for a carbon-based line defect with admixture of
energetically similar excited states.
|
[{'version': 'v1', 'created': 'Fri, 18 Dec 2020 21:30:49 GMT'}]
|
2021-05-27
|
[array(['Malein', 'Ralph N. E.', ''], dtype=object)
array(['Khatri', 'Prince', ''], dtype=object)
array(['Ramsay', 'Andrew J.', ''], dtype=object)
array(['Luxmoore', 'Isaac J.', ''], dtype=object)]
|
1,035 |
1910.02281
|
Dan Xie
|
Dan Xie, Wenbin Yan
|
4d $\mathcal{N}=2$ SCFTs and lisse W-algebras
|
55 pages, 8 figures, 23 tables
| null | null | null |
hep-th math-ph math.MP math.QA math.RT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We continue our studies of the correspondence between 4d $\mathcal{N}=2$
SCFTs and 2d W-algebras. The purpose of this paper is to study the relationship
between 2d lisse W-algebras and their 4d SCFT partners. The lisse W-algebra is
the W-algebra whose associated Zhu's $C_2$ algebra is finite dimensional. As
the associated variety of Zhu's $C_2$ algebra is identified with the Higgs
branch in the 4d/2d correspondence, the lisse condition is equivalent to the
absence of the Higgs branch on the 4d side. We classify 4d $\mathcal{N}=2$
SCFTs which do not admit Higgs branch, then these theories would give lisse
W-algebras through the 4d/2d correspondence. In particular, we predict the
existence of a large class of new non-admissible lisse W-algebras, which have
not been studied before. The 4d theories corresponding to lisse W-algebra can
appear in the Higgs branches of generic 4d $\mathcal{N}=2$ SCFTs, therefore
they are crucial to understand the Higgs branches of $\mathcal{N}=2$ SCFTs.
|
[{'version': 'v1', 'created': 'Sat, 5 Oct 2019 14:58:27 GMT'}]
|
2019-10-10
|
[array(['Xie', 'Dan', ''], dtype=object)
array(['Yan', 'Wenbin', ''], dtype=object)]
|
1,036 |
2011.09745
|
Osama Idais
|
Osama Idais and Rainer Schwabe
|
In- and Equivariance for Optimal Designs in Generalized Linear Models:
The Gamma Model
|
22 pages, 6 figures
| null | null | null |
math.ST stat.ME stat.TH
|
http://creativecommons.org/licenses/by/4.0/
|
We give an overview over the usefulness of the concept of equivariance and
invariance in the design of experiments for generalized linear models. In
contrast to linear models here pairs of transformations have to be considered
which act simultaneously on the experimental settings and on the location
parameters in the linear component. Given the transformation of the
experimental settings the parameter transformations are not unique and may be
nonlinear to make further use of the model structure. The general concepts and
results are illustrated by models with gamma distributed response. Locally
optimal and maximin efficient design are obtained for the common D- and
IMSE-criterion.
|
[{'version': 'v1', 'created': 'Thu, 19 Nov 2020 09:48:27 GMT'}]
|
2020-11-20
|
[array(['Idais', 'Osama', ''], dtype=object)
array(['Schwabe', 'Rainer', ''], dtype=object)]
|
1,037 |
1107.5131
|
S. Weinzierl
|
Stefan Weinzierl
|
Does one need the O(epsilon)- and O(epsilon^2)-terms of one-loop
amplitudes in an NNLO calculation ?
|
20 pages, minor modifications, version to be published
| null |
10.1103/PhysRevD.84.074007
| null |
hep-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
This article discusses the occurences of one-loop amplitudes within a
next-to-next-to-leading order calculation. In an NNLO calculation the one-loop
amplitude enters squared and one would therefore naively expect that the
O(epsilon)- and O(epsilon^2)-terms of the one-loop amplitudes are required. I
show that the calculation of these terms can be avoided if a method is known,
which computes the O(epsilon^0)-terms of the finite remainder function of the
two-loop amplitude.
|
[{'version': 'v1', 'created': 'Tue, 26 Jul 2011 07:36:03 GMT'}
{'version': 'v2', 'created': 'Mon, 12 Sep 2011 19:14:52 GMT'}]
|
2013-05-29
|
[array(['Weinzierl', 'Stefan', ''], dtype=object)]
|
1,038 |
2110.10074
|
Gianfranco Bertone
|
R. Alves Batista, M. A. Amin, G. Barenboim, N. Bartolo, D. Baumann, A.
Bauswein, E. Bellini, D. Benisty, G. Bertone, P. Blasi, C.G. B\"ohmer, \v{Z}.
Bo\v{s}njak, T. Bringmann, C. Burrage, M. Bustamante, J. Calder\'on Bustillo,
C. T. Byrnes, F. Calore, R. Catena, D. G. Cerde\~no, S. S. Cerri, M.
Chianese, K. Clough, A. Cole, P. Coloma, A. Coogan, L. Covi, D. Cutting, A.C.
Davis, C. de Rham, A. di Matteo, G. Dom\`enech, M. Drewes, T. Dietrich, T. D.
P. Edwards, I. Esteban, R. Erdem, C. Evoli, M. Fasiello, S. M. Feeney, R. Z.
Ferreira, A. Fialkov, N. Fornengo, S. Gabici, T. Galatyuk, D.Gaggero, D.
Grasso, C. Gu\'epin, J. Harz, M. Herrero-Valea, T. Hinderer, N. B. Hogg, D.
C. Hooper, F. Iocco, J. Isern, K. Karchev, B. J. Kavanagh, M. Korsmeier, K.
Kotera, K. Koyama, B. Krishnan, J. Lesgourgues, J. Levi Said, L. Lombriser,
C. S. Lorenz, S. Manconi, M. Mapelli, A. Marcowith, S. B. Markoff, D. J. E.
Marsh, M. Martinelli, C.J.A.P. Martins, J. H. Matthews, A. Meli, O. Mena, J.
Mifsud, M. M. Miller Bertolami, P. Millington, P. Moesta, K. Nippel, V. Niro,
E. O'Connor, F. Oikonomou, C. F. Paganini, G. Pagliaroli, P. Pani, C.
Pfrommer, S. Pascoli, L. Pinol, L. Pizzuti, R. A. Porto, A. Pound, F.
Quevedo, G. G. Raffelt, A. Raccanelli, E. Ramirez-Ruiz, M. Raveri, S.
Renaux-Petel, A. Ricciardone, A. Rida Khalifeh, A. Riotto, R. Roiban, J.
Rubio, M. Sahl\'en, N. Sabti, L. Sagunski, N. \v{S}ar\v{c}evi\'c, K. Schmitz,
P. Schwaller, T. Schwetz, A. Sedrakian, E. Sellentin, A. Serenelli, P.D.
Serpico, E. I. Sfakianakis, S. Shalgar, A. Silvestri, I. Tamborra, K.
Tanidis, D. Teresi, A. A. Tokareva, L. Tolos, S. Trojanowski, R. Trotta, C.
Uhlemann, F. R. Urban, F. Vernizzi, A. van Vliet, F. L. Villante, A. Vincent,
J. Vink, E. Vitagliano, C. Weniger, A. Wickenbrock, W. Winter, S. Zell, M.
Zeng
|
EuCAPT White Paper: Opportunities and Challenges for Theoretical
Astroparticle Physics in the Next Decade
|
White paper of the European Consortium for Astroparticle Theory
(EuCAPT). 135 authors, 400 endorsers, 133 pages, 1382 references
| null | null | null |
astro-ph.HE astro-ph.CO
|
http://creativecommons.org/licenses/by-nc-nd/4.0/
|
Astroparticle physics is undergoing a profound transformation, due to a
series of extraordinary new results, such as the discovery of high-energy
cosmic neutrinos with IceCube, the direct detection of gravitational waves with
LIGO and Virgo, and many others. This white paper is the result of a
collaborative effort that involved hundreds of theoretical astroparticle
physicists and cosmologists, under the coordination of the European Consortium
for Astroparticle Theory (EuCAPT). Addressed to the whole astroparticle physics
community, it explores upcoming theoretical opportunities and challenges for
our field of research, with particular emphasis on the possible synergies among
different subfields, and the prospects for solving the most fundamental open
questions with multi-messenger observations.
|
[{'version': 'v1', 'created': 'Tue, 19 Oct 2021 16:00:15 GMT'}]
|
2021-10-20
|
[array(['Batista', 'R. Alves', ''], dtype=object)
array(['Amin', 'M. A.', ''], dtype=object)
array(['Barenboim', 'G.', ''], dtype=object)
array(['Bartolo', 'N.', ''], dtype=object)
array(['Baumann', 'D.', ''], dtype=object)
array(['Bauswein', 'A.', ''], dtype=object)
array(['Bellini', 'E.', ''], dtype=object)
array(['Benisty', 'D.', ''], dtype=object)
array(['Bertone', 'G.', ''], dtype=object)
array(['Blasi', 'P.', ''], dtype=object)
array(['Böhmer', 'C. G.', ''], dtype=object)
array(['Bošnjak', 'Ž.', ''], dtype=object)
array(['Bringmann', 'T.', ''], dtype=object)
array(['Burrage', 'C.', ''], dtype=object)
array(['Bustamante', 'M.', ''], dtype=object)
array(['Bustillo', 'J. Calderón', ''], dtype=object)
array(['Byrnes', 'C. T.', ''], dtype=object)
array(['Calore', 'F.', ''], dtype=object)
array(['Catena', 'R.', ''], dtype=object)
array(['Cerdeño', 'D. G.', ''], dtype=object)
array(['Cerri', 'S. S.', ''], dtype=object)
array(['Chianese', 'M.', ''], dtype=object)
array(['Clough', 'K.', ''], dtype=object)
array(['Cole', 'A.', ''], dtype=object)
array(['Coloma', 'P.', ''], dtype=object)
array(['Coogan', 'A.', ''], dtype=object)
array(['Covi', 'L.', ''], dtype=object)
array(['Cutting', 'D.', ''], dtype=object)
array(['Davis', 'A. C.', ''], dtype=object)
array(['de Rham', 'C.', ''], dtype=object)
array(['di Matteo', 'A.', ''], dtype=object)
array(['Domènech', 'G.', ''], dtype=object)
array(['Drewes', 'M.', ''], dtype=object)
array(['Dietrich', 'T.', ''], dtype=object)
array(['Edwards', 'T. D. P.', ''], dtype=object)
array(['Esteban', 'I.', ''], dtype=object)
array(['Erdem', 'R.', ''], dtype=object)
array(['Evoli', 'C.', ''], dtype=object)
array(['Fasiello', 'M.', ''], dtype=object)
array(['Feeney', 'S. M.', ''], dtype=object)
array(['Ferreira', 'R. Z.', ''], dtype=object)
array(['Fialkov', 'A.', ''], dtype=object)
array(['Fornengo', 'N.', ''], dtype=object)
array(['Gabici', 'S.', ''], dtype=object)
array(['Galatyuk', 'T.', ''], dtype=object)
array(['Gaggero', 'D.', ''], dtype=object)
array(['Grasso', 'D.', ''], dtype=object)
array(['Guépin', 'C.', ''], dtype=object)
array(['Harz', 'J.', ''], dtype=object)
array(['Herrero-Valea', 'M.', ''], dtype=object)
array(['Hinderer', 'T.', ''], dtype=object)
array(['Hogg', 'N. B.', ''], dtype=object)
array(['Hooper', 'D. C.', ''], dtype=object)
array(['Iocco', 'F.', ''], dtype=object)
array(['Isern', 'J.', ''], dtype=object)
array(['Karchev', 'K.', ''], dtype=object)
array(['Kavanagh', 'B. J.', ''], dtype=object)
array(['Korsmeier', 'M.', ''], dtype=object)
array(['Kotera', 'K.', ''], dtype=object)
array(['Koyama', 'K.', ''], dtype=object)
array(['Krishnan', 'B.', ''], dtype=object)
array(['Lesgourgues', 'J.', ''], dtype=object)
array(['Said', 'J. Levi', ''], dtype=object)
array(['Lombriser', 'L.', ''], dtype=object)
array(['Lorenz', 'C. S.', ''], dtype=object)
array(['Manconi', 'S.', ''], dtype=object)
array(['Mapelli', 'M.', ''], dtype=object)
array(['Marcowith', 'A.', ''], dtype=object)
array(['Markoff', 'S. B.', ''], dtype=object)
array(['Marsh', 'D. J. E.', ''], dtype=object)
array(['Martinelli', 'M.', ''], dtype=object)
array(['Martins', 'C. J. A. P.', ''], dtype=object)
array(['Matthews', 'J. H.', ''], dtype=object)
array(['Meli', 'A.', ''], dtype=object)
array(['Mena', 'O.', ''], dtype=object)
array(['Mifsud', 'J.', ''], dtype=object)
array(['Bertolami', 'M. M. Miller', ''], dtype=object)
array(['Millington', 'P.', ''], dtype=object)
array(['Moesta', 'P.', ''], dtype=object)
array(['Nippel', 'K.', ''], dtype=object)
array(['Niro', 'V.', ''], dtype=object)
array(["O'Connor", 'E.', ''], dtype=object)
array(['Oikonomou', 'F.', ''], dtype=object)
array(['Paganini', 'C. F.', ''], dtype=object)
array(['Pagliaroli', 'G.', ''], dtype=object)
array(['Pani', 'P.', ''], dtype=object)
array(['Pfrommer', 'C.', ''], dtype=object)
array(['Pascoli', 'S.', ''], dtype=object)
array(['Pinol', 'L.', ''], dtype=object)
array(['Pizzuti', 'L.', ''], dtype=object)
array(['Porto', 'R. A.', ''], dtype=object)
array(['Pound', 'A.', ''], dtype=object)
array(['Quevedo', 'F.', ''], dtype=object)
array(['Raffelt', 'G. G.', ''], dtype=object)
array(['Raccanelli', 'A.', ''], dtype=object)
array(['Ramirez-Ruiz', 'E.', ''], dtype=object)
array(['Raveri', 'M.', ''], dtype=object)
array(['Renaux-Petel', 'S.', ''], dtype=object)
array(['Ricciardone', 'A.', ''], dtype=object)
array(['Khalifeh', 'A. Rida', ''], dtype=object)
array(['Riotto', 'A.', ''], dtype=object)
array(['Roiban', 'R.', ''], dtype=object)
array(['Rubio', 'J.', ''], dtype=object)
array(['Sahlén', 'M.', ''], dtype=object)
array(['Sabti', 'N.', ''], dtype=object)
array(['Sagunski', 'L.', ''], dtype=object)
array(['Šarčević', 'N.', ''], dtype=object)
array(['Schmitz', 'K.', ''], dtype=object)
array(['Schwaller', 'P.', ''], dtype=object)
array(['Schwetz', 'T.', ''], dtype=object)
array(['Sedrakian', 'A.', ''], dtype=object)
array(['Sellentin', 'E.', ''], dtype=object)
array(['Serenelli', 'A.', ''], dtype=object)
array(['Serpico', 'P. D.', ''], dtype=object)
array(['Sfakianakis', 'E. I.', ''], dtype=object)
array(['Shalgar', 'S.', ''], dtype=object)
array(['Silvestri', 'A.', ''], dtype=object)
array(['Tamborra', 'I.', ''], dtype=object)
array(['Tanidis', 'K.', ''], dtype=object)
array(['Teresi', 'D.', ''], dtype=object)
array(['Tokareva', 'A. A.', ''], dtype=object)
array(['Tolos', 'L.', ''], dtype=object)
array(['Trojanowski', 'S.', ''], dtype=object)
array(['Trotta', 'R.', ''], dtype=object)
array(['Uhlemann', 'C.', ''], dtype=object)
array(['Urban', 'F. R.', ''], dtype=object)
array(['Vernizzi', 'F.', ''], dtype=object)
array(['van Vliet', 'A.', ''], dtype=object)
array(['Villante', 'F. L.', ''], dtype=object)
array(['Vincent', 'A.', ''], dtype=object)
array(['Vink', 'J.', ''], dtype=object)
array(['Vitagliano', 'E.', ''], dtype=object)
array(['Weniger', 'C.', ''], dtype=object)
array(['Wickenbrock', 'A.', ''], dtype=object)
array(['Winter', 'W.', ''], dtype=object)
array(['Zell', 'S.', ''], dtype=object)
array(['Zeng', 'M.', ''], dtype=object)]
|
1,039 |
1111.1572
|
Pierre Hily-Blant
|
Vincent Dislaire (IPAG), Pierre Hily-Blant (IPAG), Alexandre Faure
(IPAG), S\'ebastien Maret (IPAG), Aurore Bacmann (IPAG), Guillaume Pineau Des
For\^ets (IAS, LERMA)
|
Nitrogen hydrides and the H2 ortho-to-para ratio in dark clouds
|
Accepted for publication in A\&A
| null |
10.1051/0004-6361/201117765
| null |
astro-ph.GA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Nitrogen bearing species are common tracers of the physical conditions in a
wide variety of objects, and most remarkably in dark clouds. The reservoir of
gaseous nitrogen is expected to be atomic or molecular, but none of the two
species are observable in the dark gas. Their abundances therefore derive
indirectly from those of N-bearing species through chemical modelling. The
recent years have accumulated data which stress our incomplete understanding of
the nitrogen chemistry in dark cloud conditions. To tackle this problem of the
nitrogen chemistry in cold gas, we have revised the formation of nitrogen
hydrides, which is initiated by the key reaction \ce{N+ + H2 -> NH+ + H}. We
propose a new rate for this reaction which depends on the ortho-to-para ratio
of H2. This new rate allows to reproduce the abundance ratios of the three
nitrogen hydrides, NH, \ce{NH2}, and \ce{NH3}, observed towards IRAS16293-2422,
provided that the channel leading to NH from the dissociative recombination of
\ce{N2H+} is not closed at low temperature. The ortho-to-para ratio of H2 is
constrained to O/P=$10^{-3}$ by the abundance ratio NH:NH2, which provides a
new method to measure O/P. This work stresses the need for reaction rates at
the low temperatures of dark clouds, and for branching ratios of critical
dissociative recombination reactions.
|
[{'version': 'v1', 'created': 'Mon, 7 Nov 2011 13:32:44 GMT'}]
|
2015-06-03
|
[array(['Dislaire', 'Vincent', '', 'IPAG'], dtype=object)
array(['Hily-Blant', 'Pierre', '', 'IPAG'], dtype=object)
array(['Faure', 'Alexandre', '', 'IPAG'], dtype=object)
array(['Maret', 'Sébastien', '', 'IPAG'], dtype=object)
array(['Bacmann', 'Aurore', '', 'IPAG'], dtype=object)
array(['Forêts', 'Guillaume Pineau Des', '', 'IAS, LERMA'], dtype=object)]
|
1,040 |
hep-ex/0205071
|
Alexis Pompili
|
Alexis Pompili (for the BaBar collaboration)
|
Charm Mixing and Lifetimes at Babar
|
5 pages, 2 figures; proceedings of the XXXVII Rencontres de Moriond
on Electroweak Interactions and Unified Theories, Les Arcs, France, 9-16
March 2002
| null | null | null |
hep-ex
| null |
Preliminary limits on the D^0 mixing parameter y = \Delta \Gamma / 2 \Gamma
are obtained using about 57.8 fb^-1 of data collected by BaBar in 2000 and
2001:y = (1.4 \pm 1.0 (stat.) +0.6 -0.7 (syst.))%. y is extracted, provided
that CP is conserved, by measuring separately the D^0 lifetime for the
Cabibbo-suppressed decay modes K- K+, \pi- \pi+ and the Cabibbo-favoured mode
K- \pi+. Backgrounds are suppressed by D*-tag and particle identification
requirements.
|
[{'version': 'v1', 'created': 'Tue, 21 May 2002 19:26:21 GMT'}]
|
2007-05-23
|
[array(['Pompili', 'Alexis', '', 'for the BaBar collaboration'],
dtype=object) ]
|
1,041 |
2207.05768
|
Yuxun Guo
|
Yuxun Guo, Xiangdong Ji and Kyle Shiells
|
Generalized parton distributions through universal moment
parameterization: zero skewness case
|
29 pages, 11 figures
| null |
10.1007/JHEP09(2022)215
| null |
hep-ph nucl-th
|
http://creativecommons.org/licenses/by/4.0/
|
We present a global analysis program for the generalized parton distributions
(GPDs) based on conformal moment expansion. We apply the strategy of universal
moment parameterization to fit both the collinear parton distribution functions
(PDFs) from phenomenology and generalized form factors from lattice
calculations, and show that the parameterization is flexible enough to
accommodate these constraints. In addition, we can also fit direct lattice
calculations of GPDs from large-momentum effective theory. In this work we
focus on the analysis of $t$-dependent PDFs which correspond to GPDs in the
$\xi \to 0$ limit. The strategy also applies to the $\xi \not =0$ region with
extra parameters, and therefore can be fitted to experimental observables in
the future. With a demonstrative example of fitted GPDs, we exhibit the quark
transverse angular momentum densities of the proton as well as the impact
parameter space distributions of quarks in both unpolarized and transversely
polarized protons.
|
[{'version': 'v1', 'created': 'Tue, 12 Jul 2022 18:00:06 GMT'}]
|
2022-10-19
|
[array(['Guo', 'Yuxun', ''], dtype=object)
array(['Ji', 'Xiangdong', ''], dtype=object)
array(['Shiells', 'Kyle', ''], dtype=object)]
|
1,042 |
1501.07116
|
Pedro Russo
|
Pedro Russo, Edward Gomez, Thilina Heenatigala and Linda Strubbe
|
Peer-review Platform for Astronomy Education Activities
|
8 pages, Published, 2015, eLearning Papers #40 ISSN: 1887-1542
| null | null | null |
astro-ph.IM physics.ed-ph
|
http://creativecommons.org/licenses/by/3.0/
|
Hundreds of thousands of astronomy education activities exist, but their
discoverability and quality is highly variable. The web platform for astronomy
education activities, astroEDU, presented in this paper tries to solve these
issues. Using the familiar peer-review workflow of scientific publications,
astroEDU is improving standards of quality, visibility and accessibility, while
providing credibility to these astronomy education activities. astroEDU targets
activity guides, tutorials and other educational activities in the area of
astronomy education, prepared by teachers, educators and other education
specialists. Each of the astroEDU activities is peer-reviewed by an educator as
well as an astronomer to ensure a high standard in terms of scientific content
and educational value. All reviewed materials are then stored in a free open
online database, enabling broad distribution in a range of different formats.
In this way astroEDU is not another web repository for educational resources
but a mechanism for peer-reviewing and publishing high-quality astronomy
education activities in an open access way. This paper will provide an account
on the implementation and first findings of the use of astroEDU.
|
[{'version': 'v1', 'created': 'Wed, 28 Jan 2015 14:36:52 GMT'}
{'version': 'v2', 'created': 'Tue, 3 Feb 2015 17:27:32 GMT'}]
|
2015-02-04
|
[array(['Russo', 'Pedro', ''], dtype=object)
array(['Gomez', 'Edward', ''], dtype=object)
array(['Heenatigala', 'Thilina', ''], dtype=object)
array(['Strubbe', 'Linda', ''], dtype=object)]
|
1,043 |
1405.7410
|
David Fisher
|
David B. Fisher, Karl Glazebrook, Alberto Bolatto, Danail Obreschkow,
Erin Mentuch-Cooper, Emily Wisnioski, Robert BAssett, Roberto G. Abraham,
Ivana Damjanov, Andy Green, Peter McGregor
|
Extreme gas fractions in clumpy, turbulent disk galaxies at z~0.1
|
Accepted to ApJ Letters
| null |
10.1088/2041-8205/790/2/L30
| null |
astro-ph.GA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this letter we report the discovery of CO fluxes, suggesting very high gas
fractions in three disk galaxies seen in the nearby Universe (z ~ 0.1). These
galaxies were investigated as part of the DYnamics of Newly Assembled Massive
Objects (DYNAMO) survey. High-resolution Hubble Space Telescope imaging of
these objects reveals the presence of large star forming clumps in the bodies
of the galaxies, while spatially resolved spectroscopy of redshifted Halpha
reveals the presence of high dispersion rotating disks. The internal dynamical
state of these galaxies resembles that of disk systems seen at much higher
redshifts (1 < z < 3). Using CO(1-0) observations made with the Plateau de Bure
Interferometer, we find gas fractions of 20-30% and depletion times of tdep ~
0.5 Gyr (assuming a Milky Way-like CO conversion factor). These properties are
unlike those expected for low- redshift galaxies of comparable specific star
formation rate, but they are normal for their high-z counterparts. DYNAMO
galaxies break the degeneracy between gas fraction and redshift, and we show
that the depletion time per specific star formation rate for galaxies is
closely tied to gas fraction, independent of redshift. We also show that the
gas dynamics of two of our local targets corresponds to those expected from
unstable disks, again resembling the dynamics of high-z disks. These results
provide evidence that DYNAMO galaxies are local analogues to the clumpy,
turbulent disks, which are often found at high redshift.
|
[{'version': 'v1', 'created': 'Wed, 28 May 2014 22:00:11 GMT'}]
|
2015-06-19
|
[array(['Fisher', 'David B.', ''], dtype=object)
array(['Glazebrook', 'Karl', ''], dtype=object)
array(['Bolatto', 'Alberto', ''], dtype=object)
array(['Obreschkow', 'Danail', ''], dtype=object)
array(['Mentuch-Cooper', 'Erin', ''], dtype=object)
array(['Wisnioski', 'Emily', ''], dtype=object)
array(['BAssett', 'Robert', ''], dtype=object)
array(['Abraham', 'Roberto G.', ''], dtype=object)
array(['Damjanov', 'Ivana', ''], dtype=object)
array(['Green', 'Andy', ''], dtype=object)
array(['McGregor', 'Peter', ''], dtype=object)]
|
1,044 |
2206.03556
|
Md Taimur Ahad
|
Syeda Nishat Tasnim (American international University), Md Taimur
Ahad (American international University)
|
Toward IoT enabled smart offices: Achieving Sustainable Development
Goals
|
9 pages, 6 figures
| null | null | null |
cs.HC
|
http://creativecommons.org/licenses/by/4.0/
|
Despite research advocating the Internet of Things (IoT) as an effective
in-office monitoring system, little research has presented societal and climate
centric discussions. Whereas the United Nations (UN) and other development
agencies concerned with climate impact, are advocating transformative actions
towards smart cities, very little research in the IoT domain analyzes the
advantages of IoT in achieving sustainable development goals (SDGs) to fill
this gap. In this study, a smart office (SO) was developed in a Cisco packet
tracer. We then presented the SO through the lens of SDGs. We suggest that SOs
support targets mentioned in Goal 6, 7, 8, 9, 11 and 12 of the SDGs. This
research is crucial - both for developing and developed economies, as we move
toward industrialization, while ignoring the adverse impacts of
industrialization. This work is expected to provide a pathway with
technological innovation toward a more sustainable world for IT practitioners,
governments and development agencies.
|
[{'version': 'v1', 'created': 'Tue, 7 Jun 2022 20:14:19 GMT'}]
|
2022-06-09
|
[array(['Tasnim', 'Syeda Nishat', '', 'American international University'],
dtype=object)
array(['Ahad', 'Md Taimur', '', 'American international University'],
dtype=object) ]
|
1,045 |
2102.00966
|
Conor F. Hayes
|
Conor F. Hayes, Mathieu Reymond, Diederik M. Roijers, Enda Howley,
Patrick Mannion
|
Risk Aware and Multi-Objective Decision Making with Distributional Monte
Carlo Tree Search
|
8 pages, 4 figures
| null | null | null |
cs.LG cs.AI
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In many risk-aware and multi-objective reinforcement learning settings, the
utility of the user is derived from the single execution of a policy. In these
settings, making decisions based on the average future returns is not suitable.
For example, in a medical setting a patient may only have one opportunity to
treat their illness. When making a decision, just the expected return -- known
in reinforcement learning as the value -- cannot account for the potential
range of adverse or positive outcomes a decision may have. Our key insight is
that we should use the distribution over expected future returns differently to
represent the critical information that the agent requires at decision time. In
this paper, we propose Distributional Monte Carlo Tree Search, an algorithm
that learns a posterior distribution over the utility of the different possible
returns attainable from individual policy executions, resulting in good
policies for both risk-aware and multi-objective settings. Moreover, our
algorithm outperforms the state-of-the-art in multi-objective reinforcement
learning for the expected utility of the returns.
|
[{'version': 'v1', 'created': 'Mon, 1 Feb 2021 16:47:39 GMT'}
{'version': 'v2', 'created': 'Tue, 2 Feb 2021 14:06:18 GMT'}]
|
2021-02-03
|
[array(['Hayes', 'Conor F.', ''], dtype=object)
array(['Reymond', 'Mathieu', ''], dtype=object)
array(['Roijers', 'Diederik M.', ''], dtype=object)
array(['Howley', 'Enda', ''], dtype=object)
array(['Mannion', 'Patrick', ''], dtype=object)]
|
1,046 |
cs/0506069
|
Remi Monasson
|
Remi Monasson (LPTENS)
|
A generating function method for the average-case analysis of DPLL
|
RANDOM 2005, Berkeley, August 22-24
|
RANDOM 2005, Berkeley, CA, \'Etats-Unis d'Am\'erique, p.402-413
| null | null |
cs.CC cond-mat.dis-nn
| null |
A method to calculate the average size of Davis-Putnam-Loveland-Logemann
(DPLL) search trees for random computational problems is introduced, and
applied to the satisfiability of random CNF formulas (SAT) and the coloring of
random graph (COL) problems. We establish recursion relations for the
generating functions of the average numbers of (variable or color) assignments
at a given height in the search tree, which allow us to derive the asymptotics
of the expected DPLL tree size, 2^{N w + o(N)}, where N is the instance size. w
is calculated as a function of the input distribution parameters (ratio of
clauses per variable for SAT, average vertex degree for COL), and the branching
heuristics.
|
[{'version': 'v1', 'created': 'Thu, 16 Jun 2005 09:17:21 GMT'}]
|
2008-06-20
|
[array(['Monasson', 'Remi', '', 'LPTENS'], dtype=object)]
|
1,047 |
1305.2939
|
Edwin Lee
|
E. Lee, D. R. Williams, and G. Lapenta
|
Spectroscopic indication of suprathermal ions in the solar corona
| null | null | null | null |
astro-ph.SR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Using spectroscopic data, we support the possibility of suprathermal
distributions of coronal ions by fitting the equivalent kappa functions to
their emission line profiles. We fit different kappa and Gaussian model
functions to line profiles of the strong Fe xv line at 284.16 Angstroms, across
two large-field spectroscopic rasters taken in a solar active region. Both
single- and double-component Gaussian models are applied, as well as two kappa
models, one with a free width parameter allowing for and the other with a
constrained width that precludes "microturbulence". We then compare the
goodness of fit of the computed best fits for each model. The kappa
distribution is a generalization, or superset, of the Maxwellian, so they are
able to fit line profiles more precisely than a Gaussian. In most of the data,
the best-fit kappa model produces much lower residuals across the profile than
any single Gaussian and sometimes double Gaussian. Most importantly, the
distribution of estimated kappa values is found to lie mostly in the low-kappa
range, implying ion populations far from Maxwellian. Even when the width is
removed as a free parameter of fit, the kappa model is still able to fit the
data credibly, again with low best-fit values of kappa. We find the shape of
the Fe xv line, in the vast majority of the data analyzed, to be indicative of
a highly suprathermal ion population.
|
[{'version': 'v1', 'created': 'Mon, 13 May 2013 20:06:57 GMT'}]
|
2013-05-15
|
[array(['Lee', 'E.', ''], dtype=object)
array(['Williams', 'D. R.', ''], dtype=object)
array(['Lapenta', 'G.', ''], dtype=object)]
|
1,048 |
2212.08548
|
Stefano Pierini Prof.
|
Stefano Pierini
|
The deterministic excitation paradigm and the late Pleistocene glacial
terminations
|
Submitted to Chaos (American Institute of Physics Publishing)
| null |
10.1063/5.0127715
| null |
physics.ao-ph nlin.CD
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
A deterministic excitation (DE) paradigm is formulated, according to which
the late Pleistocene glacial terminations correspond to the excitation, by the
orbital forcing, of nonlinear relaxation oscillations (ROs) internal to the
climate system in the absence of any stochastic parameterization. Specific
threshold crossing rules parameterizing the activation of internal climate
feedbacks leading to RO excitations are derived according to the DE assumption.
They are then applied to an energy balance model describing the fluctuations
induced by realistic orbital forcing on the glacial state. The timing of the
glacial terminations thus obtained in a reference simulation is found to be in
good agreement with proxy records. A sensitivity analysis insures the
robustness of the timing. The potential irrelevance of noise allowing DE to
hold is discussed, and a possible explanation of the 100-kyr cycle problem
based on DE is outlined. In conclusion, the DE paradigm characterizes in one of
the simplest possible ways the link between orbital forcing and glacial
terminations implied by the Milankovitch hypothesis.
|
[{'version': 'v1', 'created': 'Fri, 16 Dec 2022 15:58:12 GMT'}]
|
2023-03-22
|
[array(['Pierini', 'Stefano', ''], dtype=object)]
|
1,049 |
1001.2095
|
Hrachya Nersisyan
|
H.B. Nersisyan, G. Zwicknagel
|
Energy transfer in binary collisions of two gyrating charged particles
in a magnetic field
|
12 pages, 4 figures
| null |
10.1063/1.3476266
| null |
physics.plasm-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Binary collisions of the gyrating charged particles in an external magnetic
field are considered within a classical second-order perturbation theory, i.e.,
up to contributions which are quadratic in the binary interaction, starting
from the unperturbed helical motion of the particles. The calculations are done
with the help of a binary collisions treatment which is valid for any strength
of the magnetic field and involves all harmonics of the particles cyclotron
motion. The energy transfer is explicitly calculated for a regularized and
screened potential which is both of finite range and nonsingular at the origin.
The validity of the perturbation treatment is evaluated by comparing with
classical trajectory Monte Carlo (CTMC) calculations which also allow to
investigate the strong collisions with large energy and velocity transfer at
low velocities. For large initial velocities on the other hand, only small
velocity transfers occur. There the nonperturbative numerical CTMC results
agree excellently with the predictions of the perturbative treatment.
|
[{'version': 'v1', 'created': 'Wed, 13 Jan 2010 08:03:08 GMT'}]
|
2015-05-14
|
[array(['Nersisyan', 'H. B.', ''], dtype=object)
array(['Zwicknagel', 'G.', ''], dtype=object)]
|
1,050 |
2101.01843
|
Zhenyi Liu
|
Zhenyi Liu, Joyce Farrell, Brian Wandell
|
ISETAuto: Detecting vehicles with depth and radiance information
| null | null | null | null |
cs.CV
|
http://creativecommons.org/licenses/by/4.0/
|
Autonomous driving applications use two types of sensor systems to identify
vehicles - depth sensing LiDAR and radiance sensing cameras. We compare the
performance (average precision) of a ResNet for vehicle detection in complex,
daytime, driving scenes when the input is a depth map (D = d(x,y)), a radiance
image (L = r(x,y)), or both [D,L]. (1) When the spatial sampling resolution of
the depth map and radiance image are equal to typical camera resolutions, a
ResNet detects vehicles at higher average precision from depth than radiance.
(2) As the spatial sampling of the depth map declines to the range of current
LiDAR devices, the ResNet average precision is higher for radiance than depth.
(3) For a hybrid system that combines a depth map and radiance image, the
average precision is higher than using depth or radiance alone. We established
these observations in simulation and then confirmed them using realworld data.
The advantage of combining depth and radiance can be explained by noting that
the two type of information have complementary weaknesses. The radiance data
are limited by dynamic range and motion blur. The LiDAR data have relatively
low spatial resolution. The ResNet combines the two data sources effectively to
improve overall vehicle detection.
|
[{'version': 'v1', 'created': 'Wed, 6 Jan 2021 01:37:43 GMT'}
{'version': 'v2', 'created': 'Thu, 7 Jan 2021 02:25:02 GMT'}]
|
2021-01-08
|
[array(['Liu', 'Zhenyi', ''], dtype=object)
array(['Farrell', 'Joyce', ''], dtype=object)
array(['Wandell', 'Brian', ''], dtype=object)]
|
1,051 |
2102.11940
|
Martin Roelfs
|
Martin Roelfs
|
Geometric invariant decomposition of SU(3)
|
7 pages
| null | null | null |
math-ph math.MP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
A novel invariant decomposition of diagonalizable $n \times n$ matrices into
$n$ commuting matrices is presented. This decomposition is subsequently used to
split the fundamental representation of $\mathfrak{su}(3)$ Lie algebra elements
into at most three commuting elements of $\mathfrak{u}(3)$. As a result, the
exponential of an $\mathfrak{su}(3)$ Lie algebra element can be split into
three commuting generalized Euler's formulas, or conversely, a Lie group
element can be factorized into at most three generalized Euler's formulas.
After the factorization has been performed, the logarithm follows immediately.
|
[{'version': 'v1', 'created': 'Tue, 23 Feb 2021 21:04:07 GMT'}]
|
2021-02-25
|
[array(['Roelfs', 'Martin', ''], dtype=object)]
|
1,052 |
1609.05287
|
Lin Lin
|
Lin Lin, Cheng Li, Yanqin He, Ting Xiao, Enci Wang
|
Bar-induced central star formation as revealed by integral field
spectroscopy from CALIFA
|
19 pages, 10 figures, ApJ accepted
| null |
10.3847/1538-4357/aa657a
| null |
astro-ph.GA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We investigate the recent star formation history (SFH) in the inner region of
57 nearly face-on spiral galaxies selected from the Calar Alto Legacy Integral
Field Area (CALIFA) survey. For each galaxy we use the integral field
spectroscopy from CALIFA to obtain two-dimensional maps and radial profiles of
three parameters that are sensitive indicators of the recent SFH: the 4000\AA\
break (D$_n$(4000)), and the equivalent width of H$\delta$ absorption
(EW(H$\delta_A$)) and H$\alpha$ emission (EW(H$\alpha$)). We have also
performed photometric decomposition of bulge/bar/disk components based on SDSS
optical image. We identify a class of 17 "turnover" galaxies whose central
region present significant drop in D$_n$(4000), and most of them
correspondingly show a central upturn in EW(H$\delta_A$) and EW(H$\alpha$).
This indicates that the central region of the turnover galaxies has experienced
star formation in the past 1-2 Gyr, which makes the bulge younger and more
star-forming than surrounding regions. We find almost all (15/17) the turnover
galaxies are barred, while only half of the barred galaxies in our sample
(15/32) are classified as a turnover galaxy. This finding provides strong
evidence in support of the theoretical expectation that the bar may drive gas
from the disc inward to trigger star formation in galaxy center, an important
channel for the growth/rejuvenation of pseudobulges in disc galaxies.
|
[{'version': 'v1', 'created': 'Sat, 17 Sep 2016 07:12:41 GMT'}
{'version': 'v2', 'created': 'Wed, 8 Mar 2017 08:14:59 GMT'}]
|
2017-04-05
|
[array(['Lin', 'Lin', ''], dtype=object)
array(['Li', 'Cheng', ''], dtype=object)
array(['He', 'Yanqin', ''], dtype=object)
array(['Xiao', 'Ting', ''], dtype=object)
array(['Wang', 'Enci', ''], dtype=object)]
|
1,053 |
1511.06639
|
Pierre-Olivier Amblard
|
Augusto Zebadua, Pierre-Olivier Amblard, Eric Moisan and Olivier .J.J.
Michel
|
Compressed and quantized correlation estimators
|
submitted
| null | null | null |
stat.AP cs.IT math.IT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In passive monitoring using sensor networks, low energy supplies drastically
constrain sensors in terms of calculation and communication abilities.
Designing processing algorithms at the sensor level that take into account
these constraints is an important problem in this context. We study here the
estimation of correlation functions between sensors using compressed
acquisition and one-bit-quantization. The estimation is achieved directly using
compressed samples, without considering any reconstruction of the signals. We
show that if the signals of interest are far from white noise, estimation of
the correlation using $M$ compressed samples out of $N\geq M$ can be more
advantageous than estimation of the correlation using $M$ consecutive samples.
The analysis consists of studying the asymptotic performance of the estimators
at a fixed compression rate. We provide the analysis when the compression is
realized by a random projection matrix composed of independent and identically
distributed entries. The framework includes widely used random projection
matrices, such as Gaussian and Bernoulli matrices, and it also includes very
sparse matrices. However, it does not include subsampling without replacement,
for which a separate analysis is provided. When considering
one-bit-quantization as well, the theoretical analysis is not tractable.
However, empirical evidence allows the conclusion that in practical situations,
compressed and quantized estimators behave sufficiently correctly to be useful
in, for example, time-delay estimation and model estimation.
|
[{'version': 'v1', 'created': 'Fri, 20 Nov 2015 15:29:35 GMT'}]
|
2015-11-23
|
[array(['Zebadua', 'Augusto', ''], dtype=object)
array(['Amblard', 'Pierre-Olivier', ''], dtype=object)
array(['Moisan', 'Eric', ''], dtype=object)
array(['Michel', 'Olivier . J. J.', ''], dtype=object)]
|
1,054 |
1711.03715
|
Liming Yang
|
Liming Yang
|
Bounded Point Evaluations For Certain Polynomial And Rational Modules
| null |
Journal of Mathematical Analysis and Applications Volume 474,
Issue 1, (2019), 219-241
| null | null |
math.FA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Let $K$ be a compact subset of the complex plane $\mathbb C.$ Let $P(K)$ and
$R(K)$ be the closures in $C(K)$ of analytic polynomials and rational functions
with poles off $K,$ respectively. Let $A(K) \subset C(K)$ be the algebra of
functions that are analytic in the interior of $K$. For $1\le t <\infty,$ let
$P^t(1, \phi_1,...,\phi_N,K)$ be the closure of
$P(K)+P(K)\phi_1+...+P(K)\phi_N$ in $L^t(dA|_K),$ where $dA|_K$ is the area
measure restricted to $K$ and $\phi_1,...,\phi_N\in L^t(dA|_K).$ Let
$HP(\phi_1,...,\phi_N,K)$ be the closure of $P(K)\phi_1+...+P(K)\phi_N +R(K)$
in $C(K),$ where $\phi_1,...,\phi_N\in C(K).$ In this paper, we prove if
$R(K)\ne C(K),$ then there exists an analytic bounded point evaluation for both
$P^t(1, \phi_1,...,\phi_N,K)$ and $HP(\phi_1,...,\phi_N,K)$ for certain smooth
functions $\phi_1,...,\phi_N,$ in particular, for $\bar z,\bar z^2,...,\bar
z^N.$ We show that $A(K)\subset HP(\bar z,\bar z^2,...,\bar z^N,K)$ if and only
if $R(K) = A(K).$ In particular, $C(K) \ne HP(\bar z,\bar z^2,...,\bar z^N,K)$
unless $R(K) = C(K).$ We also give an example of $K$ showing the results are
not valid if we replace $\bar z^n$ by certain $\phi_n,$ that is, there exist
$K$ and a function $\phi\in A(K)$ such that $R(K) \ne A(K),$ but $A(K) = HP
(\phi ,K).$
|
[{'version': 'v1', 'created': 'Fri, 10 Nov 2017 07:13:36 GMT'}]
|
2019-03-21
|
[array(['Yang', 'Liming', ''], dtype=object)]
|
1,055 |
hep-th/9203067
|
Vincent G. J. Rodgers
|
Ralph Lano and V.G.J. Rodgers
|
Applications of W-algebras to BF theories, QCD and 4D Gravity
|
14 pages
|
Mod.Phys.Lett. A7 (1992) 1725-1736
|
10.1142/S0217732392001427
| null |
hep-th
| null |
We are able to show that BF theories naturally emerge from the coadjoint
orbits of $W_2$ and $w_\infty$ algebras which includes a Kac-Moody sector.
Since QCD strings can be identified with a BF theory, we are able to show a
relationship between the orbits and monopole-string solutions of QCD.
Furthermore, we observe that when 4D gravitation is cast into a BF form through
the use of Ashtekar variables, we are able to get order $\hbar$ contributions
to gravity which can be associated with the $W_2$ anomaly. We comment on the
relationship to gravitational monopoles.
|
[{'version': 'v1', 'created': 'Wed, 25 Mar 1992 00:32:41 GMT'}
{'version': 'v2', 'created': 'Wed, 25 Mar 1992 17:40:51 GMT'}]
|
2009-10-22
|
[array(['Lano', 'Ralph', ''], dtype=object)
array(['Rodgers', 'V. G. J.', ''], dtype=object)]
|
1,056 |
1708.03563
|
Pieter Moree
|
Bernadette Faye, Florian Luca and Pieter Moree
|
On the discriminator of Lucas sequences
|
21 pages
|
Ann. Math. Qu\'ebec 43 (2019), 51--71
| null | null |
math.NT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We consider the family of Lucas sequences uniquely determined by
$U_{n+2}(k)=(4k+2)U_{n+1}(k) -U_n(k),$ with initial values $U_0(k)=0$ and
$U_1(k)=1$ and $k\ge 1$ an arbitrary integer. For any integer $n\ge 1$ the
discriminator function $\mathcal{D}_k(n)$ of $U_n(k)$ is defined as the
smallest integer $m$ such that $U_0(k),U_1(k),\ldots,U_{n-1}(k)$ are pairwise
incongruent modulo $m$. Numerical work of Shallit on $\mathcal{D}_k(n)$
suggests that it has a relatively simple characterization. In this paper we
will prove that this is indeed the case by showing that for every $k\ge 1$
there is a constant $n_k$ such that ${\mathcal D}_{k}(n)$ has a simple
characterization for every $n\ge n_k$. The case $k=1$ turns out to be
fundamentally different from the case $k>1$.
|
[{'version': 'v1', 'created': 'Fri, 11 Aug 2017 14:53:49 GMT'}]
|
2020-08-27
|
[array(['Faye', 'Bernadette', ''], dtype=object)
array(['Luca', 'Florian', ''], dtype=object)
array(['Moree', 'Pieter', ''], dtype=object)]
|
1,057 |
2203.06536
|
Yulong Liu
|
Sishi Wu, Yulong Liu, Qichun Liu, Shuai-Peng Wang, Zhen Chen and Tiefu
Li
|
Hybridized Frequency Combs in Multimode Cavity Electromechanical System
|
6 pages, 4 figures
|
Phys. Rev. Lett. 128, 153901 (2022)
|
10.1103/PhysRevLett.128.153901
| null |
quant-ph nlin.CD physics.atom-ph physics.optics
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The cavity electromechanical devices with radiation-pressure-interaction
induced Kerr-like nonlinearity are promising candidates to generate microwave
frequency combs. We construct a silicon-nitride-membrane-based superconducting
cavity electromechanical device and study two mechanical modes mediated
synergistic frequency combs. Around the threshold of intracavity field
instability, we firstly show independent frequency combs with tooth spacing
equalling to each mechanical mode frequency. At the overlap boundaries of these
two individual mechanical mode mediated instability thresholds, we observe
hybridization of frequency combs based on the cavity field mediated indirect
coupling between these two mechanical modes. The spectrum lines turn to be
unequally spaced but can be recognized into combinations of the coexisting
frequency combs. Beyond the boundary, the comb reverts to the single-mode case,
and which mechanical mode frequency will the tooth spacing depend on the mode
competition. Our work demonstrates mechanical mode competition enabled
switchability of frequency comb tooth spacing and can be extended to other
devices with multiple nonlinearities.
|
[{'version': 'v1', 'created': 'Sat, 12 Mar 2022 23:56:08 GMT'}]
|
2022-04-14
|
[array(['Wu', 'Sishi', ''], dtype=object)
array(['Liu', 'Yulong', ''], dtype=object)
array(['Liu', 'Qichun', ''], dtype=object)
array(['Wang', 'Shuai-Peng', ''], dtype=object)
array(['Chen', 'Zhen', ''], dtype=object)
array(['Li', 'Tiefu', ''], dtype=object)]
|
1,058 |
cond-mat/9703025
|
David A. Head
|
D.A.Head and G.J.Rodgers
|
Slowly Driven Sandpile Formation with Granular Mixtures
|
6 pages, RevTEX, 7 postscript figures and psfig.sty included
|
Phys. Rev. E 56, 1976 (1997).
|
10.1103/PhysRevE.56.1976
| null |
cond-mat.stat-mech
| null |
We introduce a one-dimensional sandpile model with $N$ different particle
types and an infinitesimal driving rate. The parameters for the model are the
N^2 critical slopes for one type of particle on top of another. The model is
trivial when N=1, but for N=2 we observe four broad classes of sandpile
structure in different regions of the parameter space. We describe and explain
the behaviour of each of these classes, giving quantitative analysis wherever
possible. The behaviour of sandpiles with N>2 essentially consists of
combinations of these four classes. We investigate the model's robustness and
highlight the key areas that any experiment designed to reproduce these results
should focus on.
|
[{'version': 'v1', 'created': 'Mon, 3 Mar 1997 11:22:00 GMT'}]
|
2009-10-30
|
[array(['Head', 'D. A.', ''], dtype=object)
array(['Rodgers', 'G. J.', ''], dtype=object)]
|
1,059 |
2103.10898
|
Markus Rademacher
|
Markus Rademacher, Michael Konopik, Maxime Debiossac, David Grass,
Eric Lutz, Nikolai Kiesel
|
Nonequilibrium control of thermal and mechanical changes in a levitated
system
| null |
Phys. Rev. Lett. 128, 070601 (2022)
|
10.1103/PhysRevLett.128.070601
| null |
cond-mat.stat-mech quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Fluctuation theorems are fundamental extensions of the second law of
thermodynamics for small nonequilibrium systems. While work and heat are
equally important forms of energy exchange, fluctuation relations have not been
experimentally assessed for the generic situation of simultaneous mechanical
and thermal changes. Thermal driving is indeed generally slow and more
difficult to realize than mechanical driving. Here, we use feedback cooling
techniques to implement fast and controlled temperature variations of an
underdamped levitated microparticle that are one order of magnitude faster than
the equilibration time. Combining mechanical and thermal control, we verify the
validity of a fluctuation theorem that accounts for both contributions, well
beyond the range of linear response theory. Our results allow the investigation
of general far-from-equilibrium processes in microscopic systems that involve
fast mechanical and thermal changes at the same time.
|
[{'version': 'v1', 'created': 'Fri, 19 Mar 2021 16:43:48 GMT'}
{'version': 'v2', 'created': 'Tue, 24 Aug 2021 21:02:40 GMT'}]
|
2022-02-24
|
[array(['Rademacher', 'Markus', ''], dtype=object)
array(['Konopik', 'Michael', ''], dtype=object)
array(['Debiossac', 'Maxime', ''], dtype=object)
array(['Grass', 'David', ''], dtype=object)
array(['Lutz', 'Eric', ''], dtype=object)
array(['Kiesel', 'Nikolai', ''], dtype=object)]
|
1,060 |
1004.2297
|
Gustavo Lima
|
G. Lima, E. S. G\'omez, A. Vargas, R. O. Vianna, and C. Saavedra
|
Fast entanglement detection for unknown states of two spatial qutrits
|
8 pages, 6 figures
|
Physical Review A 82, 012302 (2010)
|
10.1103/PhysRevA.82.012302
| null |
quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We investigate the practicality of the method proposed by Maciel et al.
[Phys. Rev. A. 80, 032325(2009)] for detecting the entanglement of two spatial
qutrits (3-dimensional quantum systems), which are encoded in the discrete
transverse momentum of single photons transmitted through a multi-slit
aperture. The method is based on the acquisition of partial information of the
quantum state through projective measurements, and a data processing analysis
done with semi-definite programs. This analysis relies on generating gradually
an optimal entanglement witness operator, and numerical investigations have
shown that it allows for the entanglement detection of unknown states with a
cost much lower than full state tomography.
|
[{'version': 'v1', 'created': 'Wed, 14 Apr 2010 00:50:46 GMT'}]
|
2015-05-18
|
[array(['Lima', 'G.', ''], dtype=object)
array(['Gómez', 'E. S.', ''], dtype=object)
array(['Vargas', 'A.', ''], dtype=object)
array(['Vianna', 'R. O.', ''], dtype=object)
array(['Saavedra', 'C.', ''], dtype=object)]
|
1,061 |
2203.03542
|
Fatemah Husain
|
Fatemah Husain and Ozlem Uzuner
|
Fine-Tuning Approach for Arabic Offensive Language Detection System:
BERT-Based Model
|
5 pages. Future Technologies and Innovations (FTI) Proceedings, 4th
International Conference on Computer Applications and Information Security
(ICCAIS 2021). arXiv admin note: substantial text overlap with
arXiv:2102.05708
| null | null | null |
cs.CL
|
http://creativecommons.org/licenses/by/4.0/
|
The problem of online offensive language limits the health and security of
online users. It is essential to apply the latest state-of-the-art techniques
in developing a system to detect online offensive language and to ensure social
justice to the online communities. Our study investigates the effects of
fine-tuning across several Arabic offensive language datasets. We develop
multiple classifiers that use four datasets individually and in combination in
order to gain knowledge about online Arabic offensive content and classify
users comments accordingly. Our results demonstrate the limited effects of
transfer learning on the classifiers performance, particularly for highly
dialectal comments.
|
[{'version': 'v1', 'created': 'Mon, 7 Feb 2022 17:26:35 GMT'}]
|
2022-03-08
|
[array(['Husain', 'Fatemah', ''], dtype=object)
array(['Uzuner', 'Ozlem', ''], dtype=object)]
|
1,062 |
1811.07496
|
Satoko Sorahana
|
Satoko Sorahana, Tadashi Nakajima, and Yoshiki Matsuoka
|
Evaluation of the Vertical Scale Height of L dwarfs in the Galactic Thin
Disk
|
32 pages, 9 figures, accepted for publication in ApJ
| null |
10.3847/1538-4357/aaf1a7
| null |
astro-ph.GA astro-ph.SR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Using the data release 1 of the Hyper Suprime-Cam Subaru Strategic Program
covering about 130 square degrees at high galactic latitudes, we have obtained
L dwarf counts based on the selection criteria on colors, limiting magnitude
and PSF morphology using $i$, $z$, and $y$ bands. 3665 L dwarfs brighter than
$z=24$ have been detected by these criteria. The surface number counts obtained
differentially in $z$ magnitude are compared with predictions of an exponential
disk model to estimate the thin-disk scale height in the vicinity of the Sun.
In the exponential disk model, we first fix the local luminosity function (LLF)
to the mean LLF of Cruz et al. (2007) and derive the best fit scale height of
260 pc. However this fit appears to be poor. We then allow the LLF to vary
along with the scale height. We use the LLF of Cruz et al. as a starting point.
The best-fit model is found for the vertical scale height of 380 pc. However
the $\chi^2$ minimum is rather broad and the 90% confidence interval is between
320 and 520 pc. We investigate another model by varying the scale height and
the density of the brightest magnitude bin, while other magnitude bins are
fixed to the mean LLF of Cruz et al.. We find an equally good fit with the two
free parameters and the best-fit scale height is again 380 pc, but the 90%
confidence interval is between 340 and 420 pc.
|
[{'version': 'v1', 'created': 'Mon, 19 Nov 2018 04:38:05 GMT'}]
|
2019-01-23
|
[array(['Sorahana', 'Satoko', ''], dtype=object)
array(['Nakajima', 'Tadashi', ''], dtype=object)
array(['Matsuoka', 'Yoshiki', ''], dtype=object)]
|
1,063 |
0706.4403
|
Bertrand Eynard
|
Bertrand Eynard (SPhT)
|
Recursion between Mumford volumes of moduli spaces
|
Latex, 18 pages
| null | null |
SPHT-T07/104
|
math.AG hep-th math-ph math.MP
| null |
We propose a new proof, as well as a generalization of Mirzakhani's recursion
for volumes of moduli spaces. We interpret those recursion relations in terms
of expectation values in Kontsevich's integral, i.e. we relate them to a Ribbon
graph decomposition of Riemann surfaces. We find a generalization of
Mirzakhani's recursions to measures containing all higher Mumford's kappa
classes, and not only kappa1 as in the Weil-Petersson case.
|
[{'version': 'v1', 'created': 'Fri, 29 Jun 2007 12:46:44 GMT'}]
|
2007-07-10
|
[array(['Eynard', 'Bertrand', '', 'SPhT'], dtype=object)]
|
1,064 |
1703.01420
|
Seyed Akbar Jafari
|
S. A. Jafari
|
Exact phase diagram and topological phase transitions of the XYZ spin
chain
|
6 Figs
|
Phys. Rev. E 96 (2017) 012159
|
10.1103/PhysRevE.96.012159
| null |
cond-mat.str-el cond-mat.supr-con
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Within the block spin renormalization group we are able to construct the
"exact" phase diagram of the XYZ spin chain. First we identify the Ising order
along $\hat x$ or $\hat y$ as attractive renormalization group fixed points of
the Kitaev chain. Then in a global phase space composed of the anisotropy
$\lambda$ of the XY interaction and the coupling $\Delta$ of the
$\Delta\sigma^z\sigma^z$ interaction we find that the above fixed points remain
attractive in the two dimesional parameter space. We therefore classify the
gapped phases of the XYZ spin chain as: (1) either attracted to the Ising limit
of the Kitaev-chain which in turn is characterized by winding number $\pm 1$
depending whether the Ising order parameter is along $\hat x$ or $\hat y$
directions; or (2) attracted to the Mott phases of the underlying Jordan-Wigner
fermions which is characterized by zero winding number. We therefore establish
that the exact phase boundaries of the XYZ model in Baxter's solution indeed
correspond to topological phase transitions. The topological nature of the
phase transitions of the XYZ model justifies why our analytical solution of the
three-site problem which is at the core of the renormalization group treatment
is able to produce the exact phase diagram of Baxter's solution. We argue that
the distribution of the winding numbers between the three Ising phases is a
matter of choice of the coordinate system, and therefore the Mott-Ising phase
is entitled to host apprpriate form of zero modes. We further observe that the
renormalization group flow can be cast into a geometric progression of a
properly identified parameter. We show that this new parameter is actually the
size of the (Majorana) zero modes.
|
[{'version': 'v1', 'created': 'Sat, 4 Mar 2017 08:59:56 GMT'}]
|
2017-08-21
|
[array(['Jafari', 'S. A.', ''], dtype=object)]
|
1,065 |
math/0702591
|
Radford M. Neal
|
Longhai Li, Jianguo Zhang, and Radford M. Neal
|
A Method for Avoiding Bias from Feature Selection with Application to
Naive Bayes Classification Models
| null | null | null | null |
math.ST stat.TH
| null |
For many classification and regression problems, a large number of features
are available for possible use - this is typical of DNA microarray data on gene
expression, for example. Often, for computational or other reasons, only a
small subset of these features are selected for use in a model, based on some
simple measure such as correlation with the response variable. This procedure
may introduce an optimistic bias, however, in which the response variable
appears to be more predictable than it actually is, because the high
correlation of the selected features with the response may be partly or wholely
due to chance. We show how this bias can be avoided when using a Bayesian model
for the joint distribution of features and response. The crucial insight is
that even if we forget the exact values of the unselected features, we should
retain, and condition on, the knowledge that their correlation with the
response was too small for them to be selected. In this paper we describe how
this idea can be implemented for ``naive Bayes'' models of binary data.
Experiments with simulated data confirm that this method avoids bias due to
feature selection. We also apply the naive Bayes model to subsets of data
relating gene expression to colon cancer, and find that correcting for bias
from feature selection does improve predictive performance.
|
[{'version': 'v1', 'created': 'Tue, 20 Feb 2007 20:02:24 GMT'}]
|
2007-06-13
|
[array(['Li', 'Longhai', ''], dtype=object)
array(['Zhang', 'Jianguo', ''], dtype=object)
array(['Neal', 'Radford M.', ''], dtype=object)]
|
1,066 |
2303.13841
|
Sang-In Shim
|
Sang-In Shim, Kazuki Yoshida, Kazuyuki Ogata
|
Systematic analysis of the nuclear absorption effect on the cross
section of the knockout reaction
|
8 pages, 4 figures
| null | null | null |
nucl-th
|
http://creativecommons.org/licenses/by/4.0/
|
Recent studies on nucleon and alpha knockout reactions have shown that the
distorted-wave impulse approximation (DWIA) is a simple and accurate method to
describe these reactions. As it has been argued for decades, the nuclear
absorption is one of the most important ingredients of the DWIA calculation. In
this work, we systematically investigate the absorption effects on the cross
sections of the nucleon and alpha knockout reactions. To do this, we calculate
the ratio of the cross sections of the DWIA and plane-wave impulse
approximation (PWIA) and examine its dependence on the mass number and
single-particle orbital of the knocked-out particles. We will discuss the
specific characteristics of the absorption effect for each reaction.
|
[{'version': 'v1', 'created': 'Fri, 24 Mar 2023 07:34:05 GMT'}
{'version': 'v2', 'created': 'Tue, 4 Jul 2023 09:52:27 GMT'}]
|
2023-07-06
|
[array(['Shim', 'Sang-In', ''], dtype=object)
array(['Yoshida', 'Kazuki', ''], dtype=object)
array(['Ogata', 'Kazuyuki', ''], dtype=object)]
|
1,067 |
1012.1311
|
Benjamin Beeker
|
Benjamin Beeker
|
Abelian JSJ decomposition of graphs of free abelian groups
|
19 pages, 6 figures
| null | null | null |
math.GR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
A group G is a vGBS group if it admits a decomposition as a finite graph of
groups with all edge and vertex groups finitely generated and free abelian. We
construct the JSJ decomposition of a vGBS group over abelian groups. We prove
that this decomposition is explicitly computable, and may be obtained by local
changes on the initial graph of groups.
|
[{'version': 'v1', 'created': 'Mon, 6 Dec 2010 20:57:03 GMT'}]
|
2010-12-07
|
[array(['Beeker', 'Benjamin', ''], dtype=object)]
|
1,068 |
1102.2186
|
A. V. Maccio'
|
J.C. Mu\~noz-Cuartas (AIP), Andrea V. Macci\`o (MPIA), Stefan
Gottl\"ober (AIP), Aaron Dutton (UVic)
|
The Redshift Evolution of LCDM Halo Parameters
|
9 pages, 4 figures. Proceedings of CRF2010, DESY Hamburg, Nov 9-12
2010
| null | null | null |
astro-ph.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study the mass and redshift dependence of the concentration parameter in
Nbody simulations spanning masses from $10^{10} \hMsun$ to $10^{15} \hMsun$ and
redshifts from 0 to 2. We present a series of fitting formulas that accurately
describe the time evolution of the concentration-mass relation since z=2. Using
arguments based on the spherical collapse model we study the behaviour of the
scale length of the density profile during the assembly history of haloes,
obtaining physical insights on the origin of the observed time evolution of the
concentration mass relation. We present preliminary results of the
implementation of this model in the prediction of the values of the
concentration parameter for different masses and redshifts.
|
[{'version': 'v1', 'created': 'Thu, 10 Feb 2011 17:41:58 GMT'}
{'version': 'v2', 'created': 'Fri, 11 Feb 2011 13:04:36 GMT'}]
|
2011-02-14
|
[array(['Muñoz-Cuartas', 'J. C.', '', 'AIP'], dtype=object)
array(['Macciò', 'Andrea V.', '', 'MPIA'], dtype=object)
array(['Gottlöber', 'Stefan', '', 'AIP'], dtype=object)
array(['Dutton', 'Aaron', '', 'UVic'], dtype=object)]
|
1,069 |
0801.4198
|
Kazutaka Nakamura
|
Kazutaka Nakamura, Toshiyuki Tanaka
|
Microscopic Analysis for Decoupling Principle of Linear Vector Channel
| null | null | null | null |
cs.IT math.IT
| null |
This paper studies the decoupling principle of a linear vector channel, which
is an extension of CDMA and MIMO channels. We show that the scalar-channel
characterization obtained via the decoupling principle is valid not only for
collections of a large number of elements of input vector, as discussed in
previous studies, but also for individual elements of input vector, i.e. the
linear vector channel for individual elements of channel input vector is
decomposed into a bank of independent scalar Gaussian channels in the
large-system limit, where dimensions of channel input and output are both sent
to infinity while their ratio fixed.
|
[{'version': 'v1', 'created': 'Mon, 28 Jan 2008 06:59:42 GMT'}]
|
2008-01-29
|
[array(['Nakamura', 'Kazutaka', ''], dtype=object)
array(['Tanaka', 'Toshiyuki', ''], dtype=object)]
|
1,070 |
1708.09395
|
Dean Robinson
|
Vladimir V. Gligorov, Simon Knapen, Michele Papucci, Dean J. Robinson
|
Searching for Long-lived Particles: A Compact Detector for Exotics at
LHCb
|
12 pages, 8 figures, 2 tables; published version
|
Phys. Rev. D 97, 015023 (2018)
|
10.1103/PhysRevD.97.015023
| null |
hep-ph hep-ex
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We advocate for the construction of a new detector element at the LHCb
experiment, designed to search for displaced decays of beyond standard model
long-lived particles, taking advantage of a large shielded space in the LHCb
cavern that is expected to soon become available. We discuss the general
features and putative capabilities of such an experiment, as well as its
various advantages and complementarities with respect to the existing LHC
experiments and proposals such as SHiP and MATHUSLA. For two well-motivated
beyond Standard Model benchmark scenarios -- Higgs decay to dark photons and
$B$ meson decays via a Higgs mixing portal -- the reach either complements or
exceeds that predicted for other LHC experiments.
|
[{'version': 'v1', 'created': 'Wed, 30 Aug 2017 18:00:02 GMT'}
{'version': 'v2', 'created': 'Fri, 4 May 2018 13:59:00 GMT'}]
|
2018-05-07
|
[array(['Gligorov', 'Vladimir V.', ''], dtype=object)
array(['Knapen', 'Simon', ''], dtype=object)
array(['Papucci', 'Michele', ''], dtype=object)
array(['Robinson', 'Dean J.', ''], dtype=object)]
|
1,071 |
2110.08644
|
Aleksander Stanislavsky A.
|
Aleksander A. Stanislavsky, Igor N. Bubnov, Artem A. Koval, Serge N.
Yerin
|
Parker Solar Probe detects solar radio bursts related with a
behind-the-limb active region
|
8 pages, 6 figures, 2 tables, accepted to be published in Astronomy
and Astrophysics 2021
|
A&A 657, A21 (2022)
|
10.1051/0004-6361/202141984
| null |
astro-ph.SR physics.space-ph
|
http://creativecommons.org/licenses/by/4.0/
|
The interpretation of solar radio bursts observed by Parker Solar Probe (PSP)
in the encounter phase plays a key role in understanding intrinsic properties
of the emission mechanism in the solar corona. Lower time-frequency resolution
of the PSP receiver can be overcome by simultaneous ground-based observations
using more advanced antennas and receivers. In this paper we present such
observations for which the active active region 12765, begetter of type III, J,
and U solar bursts, was within sight of ground-based instruments and behind the
solar limb of the PSP spacecraft. We used a subarray of the Giant Ukrainian
Radio Telescope (GURT) to get the spectral properties of radio bursts at the
frequency range of 8-80 MHz, as well as the PSP radio instruments with a
bandwidth of 10.5 kHz - 19.2 MHz, during solar observations on June 5, 2020. We
directly detected the radio events initiated by the active region behind the
solar limb of the PSP spacecraft, using special conditions in the solar corona,
due to the absence of active regions from the PSP side. Following the
generation mechanism of solar radio emission, we refined the density model for
the solar corona above the active region 12765 responsible for the radio
bursts. Based on the PSP spacecraft position near the Sun and delays of radio
waves between space- and ground-based records, we found the corresponding radio
responses on the PSP spectrogram. The absence of sunspots from the PSP side
contributes to the propagation of radio waves from a dense loop of the Sun to
quiet regions with low densities, through which PSP instruments can detect the
radiation.
|
[{'version': 'v1', 'created': 'Sat, 16 Oct 2021 19:18:05 GMT'}]
|
2021-12-22
|
[array(['Stanislavsky', 'Aleksander A.', ''], dtype=object)
array(['Bubnov', 'Igor N.', ''], dtype=object)
array(['Koval', 'Artem A.', ''], dtype=object)
array(['Yerin', 'Serge N.', ''], dtype=object)]
|
1,072 |
1807.04742
|
Ashvin Nair
|
Ashvin Nair, Vitchyr Pong, Murtaza Dalal, Shikhar Bahl, Steven Lin,
Sergey Levine
|
Visual Reinforcement Learning with Imagined Goals
|
15 pages, NeurIPS 2018
| null | null | null |
cs.LG cs.CV cs.RO stat.ML
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
For an autonomous agent to fulfill a wide range of user-specified goals at
test time, it must be able to learn broadly applicable and general-purpose
skill repertoires. Furthermore, to provide the requisite level of generality,
these skills must handle raw sensory input such as images. In this paper, we
propose an algorithm that acquires such general-purpose skills by combining
unsupervised representation learning and reinforcement learning of
goal-conditioned policies. Since the particular goals that might be required at
test-time are not known in advance, the agent performs a self-supervised
"practice" phase where it imagines goals and attempts to achieve them. We learn
a visual representation with three distinct purposes: sampling goals for
self-supervised practice, providing a structured transformation of raw sensory
inputs, and computing a reward signal for goal reaching. We also propose a
retroactive goal relabeling scheme to further improve the sample-efficiency of
our method. Our off-policy algorithm is efficient enough to learn policies that
operate on raw image observations and goals for a real-world robotic system,
and substantially outperforms prior techniques.
|
[{'version': 'v1', 'created': 'Thu, 12 Jul 2018 17:51:16 GMT'}
{'version': 'v2', 'created': 'Tue, 4 Dec 2018 08:44:08 GMT'}]
|
2018-12-05
|
[array(['Nair', 'Ashvin', ''], dtype=object)
array(['Pong', 'Vitchyr', ''], dtype=object)
array(['Dalal', 'Murtaza', ''], dtype=object)
array(['Bahl', 'Shikhar', ''], dtype=object)
array(['Lin', 'Steven', ''], dtype=object)
array(['Levine', 'Sergey', ''], dtype=object)]
|
1,073 |
0908.3159
|
Gunter M. Ziegler
|
Thilo R\"orig, G\"unter M. Ziegler
|
Polyhedral Surfaces in Wedge Products
|
17 pages, 5 figures
| null | null | null |
math.MG math.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We introduce the wedge product of two polytopes. The wedge product is
described in terms of inequality systems, in terms of vertex coordinates as
well as purely combinatorially, from the corresponding data of its
constituents. The wedge product construction can be described as an iterated
``subdirect product'' as introduced by McMullen (1976); it is dual to the
``wreath product'' construction of Joswig and Lutz (2005).
One particular instance of the wedge product construction turns out to be
especially interesting: The wedge products of polygons with simplices contain
certain combinatorially regular polyhedral surfaces as subcomplexes. These
generalize known classes of surfaces ``of unusually large genus'' that first
appeared in works by Coxeter (1937), Ringel (1956), and McMullen, Schulz, and
Wills (1983). Via ``projections of deformed wedge products'' we obtain
realizations of some of the surfaces in the boundary complexes of 4-polytopes,
and thus in R^3. As additional benefits our construction also yields polyhedral
subdivisions for the interior and the exterior, as well as a great number of
local deformations (``moduli'') for the surfaces in R^3. In order to prove that
there are many moduli, we introduce the concept of ``affine support sets'' in
simple polytopes. Finally, we explain how duality theory for 4-dimensional
polytopes can be exploited in order to also realize combinatorially dual
surfaces in R^3 via dual 4-polytopes.
|
[{'version': 'v1', 'created': 'Fri, 21 Aug 2009 16:07:26 GMT'}]
|
2009-08-24
|
[array(['Rörig', 'Thilo', ''], dtype=object)
array(['Ziegler', 'Günter M.', ''], dtype=object)]
|
1,074 |
1306.6142
|
David A. Craig
|
David A. Craig and Parampreet Singh
|
Consistent probabilities in loop quantum cosmology
|
22 pages, 3 figures. Matches published version
|
Class. Quantum Grav. 30 (2013) 205008
|
10.1088/0264-9381/30/20/205008
|
PI-QG-249
|
gr-qc quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
A fundamental issue for any quantum cosmological theory is to specify how
probabilities can be assigned to various quantum events or sequences of events
such as the occurrence of singularities or bounces. In previous work, we have
demonstrated how this issue can be successfully addressed within the consistent
histories approach to quantum theory for Wheeler-DeWitt-quantized cosmological
models. In this work, we generalize that analysis to the exactly solvable loop
quantization of a spatially flat, homogeneous and isotropic cosmology sourced
with a massless, minimally coupled scalar field known as sLQC. We provide an
explicit, rigorous and complete decoherent histories formulation for this model
and compute the probabilities for the occurrence of a quantum bounce vs. a
singularity. Using the scalar field as an emergent internal time, we show for
generic states that the probability for a singularity to occur in this model is
zero, and that of a bounce is unity, complementing earlier studies of the
expectation values of the volume and matter density in this theory. We also
show from the consistent histories point of view that all states in this model,
whether quantum or classical, achieve arbitrarily large volume in the limit of
infinite `past' or `future' scalar `time', in the sense that the wave function
evaluated at any arbitrary fixed value of the volume vanishes in that limit.
Finally, we briefly discuss certain misconceptions concerning the utility of
the consistent histories approach in these models.
|
[{'version': 'v1', 'created': 'Wed, 26 Jun 2013 06:50:58 GMT'}
{'version': 'v2', 'created': 'Tue, 1 Oct 2013 05:31:23 GMT'}]
|
2013-10-02
|
[array(['Craig', 'David A.', ''], dtype=object)
array(['Singh', 'Parampreet', ''], dtype=object)]
|
1,075 |
1507.08961
|
Matteo Semplice
|
Gabriella Puppo, Matteo Semplice, Andrea Tosin, Giuseppe Visconti
|
Kinetic models for traffic flow resulting in a reduced space of
microscopic velocities
|
Replaced with revised version
|
Kinet. Relat. Models, 10(3):823-854, 2017
|
10.3934/krm.2017033
| null |
math.NA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The purpose of this paper is to study the properties of kinetic models for
traffic flow described by a Boltzmann-type approach and based on a continuous
space of microscopic velocities. In our models, the particular structure of the
collision kernel allows one to find the analytical expression of a class of
steady-state distributions, which are characterized by being supported on a
quantized space of microscopic speeds. The number of these velocities is
determined by a physical parameter describing the typical acceleration of a
vehicle and the uniqueness of this class of solutions is supported by numerical
investigations. This shows that it is possible to have the full richness of a
kinetic approach with the simplicity of a space of microscopic velocities
characterized by a small number of modes. Moreover, the explicit expression of
the asymptotic distribution paves the way to deriving new macroscopic equations
using the closure provided by the kinetic model.
|
[{'version': 'v1', 'created': 'Fri, 31 Jul 2015 17:55:46 GMT'}
{'version': 'v2', 'created': 'Fri, 10 Jun 2016 13:16:44 GMT'}]
|
2016-12-30
|
[array(['Puppo', 'Gabriella', ''], dtype=object)
array(['Semplice', 'Matteo', ''], dtype=object)
array(['Tosin', 'Andrea', ''], dtype=object)
array(['Visconti', 'Giuseppe', ''], dtype=object)]
|
1,076 |
1109.0384
|
Andrew Smerald
|
Andrew Smerald and Nic Shannon
|
Angle-resolved NMR: quantitative theory of 75As T1 relaxation rate in
BaFe2As2
|
18 pages, 10 figures
|
Phys. Rev. B 84, 184437 (2011)
|
10.1103/PhysRevB.84.184437
| null |
cond-mat.str-el
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
While NMR measurements of nuclear energy spectra are routinely used to
characterize the static properties of quantum magnets, the dynamical
information locked in NMR 1/T1 relaxation rates remains notoriously difficult
to interpret. The difficulty arises from the fact that information about all
possible low-energy spin excitations of the electrons, and their coupling to
the nuclear moments, is folded into a single number, 1/T1. Here we develop a
quantitative theory of the NMR 1/T1 relaxation rate in a collinear
antiferromagnet, focusing on the specific example of BaFe2As2. One of the most
striking features of magnetism in BaFe2As2 is a strong dependence of 1/T1 on
the orientation of the applied magnetic field. By careful analysis of the
coupling between the nuclear and electronic moments, we show how this
anisotropy arises from the "filtering" of spin fluctuations by the form-factor
for transferred hyperfine interactions. This allows us to make convincing,
quantitative, fits to experimental 1/T1 data for BaFe2As2, for different field
orientations. We go on to show how a quantitative, angle-dependent theory for
the relaxation rate leads to new ways of measuring the dynamical parameters of
magnetic systems, in particular the spin wave velocities.
|
[{'version': 'v1', 'created': 'Fri, 2 Sep 2011 09:00:08 GMT'}
{'version': 'v2', 'created': 'Wed, 30 Nov 2011 10:37:58 GMT'}]
|
2011-12-01
|
[array(['Smerald', 'Andrew', ''], dtype=object)
array(['Shannon', 'Nic', ''], dtype=object)]
|
1,077 |
hep-ph/0005118
|
Lee Jae Sik
|
Eri Asakawa, S.Y. Choi, and Jae Sik Lee
|
Probing the MSSM Higgs Boson Sector with Explicit CP Violation through
Third Generation Fermion Pair Production at Muon Colliders
|
30 pages, 7 figures including 5 eps ones. Typos corrected and
references added. To appear in Phys. Rev. D
|
Phys.Rev. D63 (2001) 015012
|
10.1103/PhysRevD.63.015012
|
KIAS-P00021, OCHA-PP-156
|
hep-ph
| null |
We perform a systematic study of the production of a third-generation
fermion-pair, $\mu^+\mu^-\to f\bar{f}$ for $f=\tau^-,b$, and t in the minimal
supersymmetric standard model (MSSM) with explicit CP violation, which is
induced radiatively by soft trilinear interactions related to squarks of the
third generation. We classify all the observables for probing the CP property
of the Higgs bosons constructed by the initial muon beam polarization along
with the unpolarized final fermions and with the final-fermion polarization
configuration of equal helicity, respectively. The observables allow for
complete determination of CP property of the neutral Higgs bosons. The
interference between the Higgs boson and gauge boson contributions also could
provide a powerful method for the determination of the CP property of two heavy
Higgs bosons in the top-quark pair production near the energy region of the
Higgs-boson resonances. For the lightest Higgs-boson mass there is no sizable
interference between scalar and vector contributions for the determination of
the CP property of the lightest Higgs boson. We give a detailed numerical
analysis to show how the radiatively-induced CP violation in the Higgs sector
of the MSSM can be measured.
|
[{'version': 'v1', 'created': 'Fri, 12 May 2000 03:47:41 GMT'}
{'version': 'v2', 'created': 'Tue, 1 Aug 2000 06:18:10 GMT'}
{'version': 'v3', 'created': 'Thu, 5 Oct 2000 02:50:48 GMT'}]
|
2009-10-31
|
[array(['Asakawa', 'Eri', ''], dtype=object)
array(['Choi', 'S. Y.', ''], dtype=object)
array(['Lee', 'Jae Sik', ''], dtype=object)]
|
1,078 |
0904.1872
|
Joshua Feinberg
|
Joshua Feinberg
|
Statistics of Resonances in One Dimensional Continuous Systems
|
latex, 8 pages, no figures; original material, based on an invited
lecture at the Homi Bhabha Centenary conference on "Non-Hermitian operators
in quantum physics", Bhaba Atomic Research Center, Mumbai, January 2009
| null |
10.1007/s12043-009-0108-6
| null |
cond-mat.dis-nn hep-th math-ph math.MP quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study the average density of resonances (DOR) of a disordered
one-dimensional continuous open system. The disordered system is semi-infinite,
with white-noise random potential, and it is coupled to the external world by a
semi-infinite continuous perfect lead. Our main result is an integral
representation for the DOR which involves the probability density function of
the logarithmic derivative of the wave function at the contact point.
|
[{'version': 'v1', 'created': 'Sun, 12 Apr 2009 15:18:13 GMT'}]
|
2015-05-13
|
[array(['Feinberg', 'Joshua', ''], dtype=object)]
|
1,079 |
funct-an/9312005
|
Ya. Alber
|
Ya. I. Alber
|
The Penalty Method for Variational Inequalities with Nonsmooth Unbounded
Operators in Banach Space
|
14 pages, LaTex
| null | null | null |
funct-an math.FA
| null |
The existence of a solution, convergence and stability of the penalty method
for variational inequalities with nonsmooth unbounded uniformly and properly
monotone operators in Banach spase $B$ are investigated. All the objects of the
inequality - the operator A, "the right-hand part" $f$ and the set of
constrains $\Omega $ - are to be perturbed. The stability theorems are
formulated in terms of geometric characteristics of the spaces $B$ and $B^*$.
The results of this paper are continuity and generalization of the Lions' ones,
published earlier in \cite{l}. They are new even in Hilbert spaces.
|
[{'version': 'v1', 'created': 'Wed, 29 Dec 1993 16:21:10 GMT'}]
|
2008-02-03
|
[array(['Alber', 'Ya. I.', ''], dtype=object)]
|
1,080 |
1601.02449
|
Lilia Anguelova
|
Lilia Anguelova
|
Glueball Inflation and Gauge/Gravity Duality
|
9 pages, contribution to the proceedings of the 11th international
workshop "Lie Theory and its Applications in Physics", Varna, 2015
|
Springer Proc. Math. Stat. 191 (2016) 285-293
| null | null |
hep-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We summarize our work on building glueball inflation models with the methods
of the gauge/gravity duality. We review the relevant five-dimensional
consistent truncation of type IIB supergravity. We consider solutions of this
effective theory, whose metric has the form of a $dS_4$ foliation over a radial
direction. By turning on small (in an appropriate sense) time-dependent
deformations around these solutions, one can build models of glueball
inflation. We discuss a particular deformed solution, describing an ultra-slow
roll inflationary regime.
|
[{'version': 'v1', 'created': 'Mon, 11 Jan 2016 14:02:56 GMT'}]
|
2017-03-20
|
[array(['Anguelova', 'Lilia', ''], dtype=object)]
|
1,081 |
1301.5788
|
Tapan Chatterji
|
Tapan Chatterji, Mohamed Zbiri, Stephane Rols
|
Phonon-Magnon coupling in CoF$_2$ investigated by time-of-flight neutron
spectroscopy
| null |
Solid State Communication 174, 55 (2013)
|
10.1016/j.ssc.2013.08.012
| null |
cond-mat.mtrl-sci
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We report the results of inelastic neutron scattering investigation on the
model antiferromagnet CoF$_2$ by time-of-flight neutron spectroscopy. We
measured the details of the scattering function $S(Q,\omega)$ as a function of
temperature with two different incident neutron wavelengths. The temperature
and Q dependence of the measured scattering function suggests the presence of
magnon-phonon coupling in almost all branches. The present results are in
agreement with the strong magnetoelastic effects observed previously.
|
[{'version': 'v1', 'created': 'Thu, 24 Jan 2013 14:22:40 GMT'}]
|
2015-06-12
|
[array(['Chatterji', 'Tapan', ''], dtype=object)
array(['Zbiri', 'Mohamed', ''], dtype=object)
array(['Rols', 'Stephane', ''], dtype=object)]
|
1,082 |
2303.07526
|
Alois Schiessl
|
Alois Schiessl
|
Just another solution to the Basel Problem
|
3 pages
| null | null | null |
math.HO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The Basel problem consists in finding the sum of the reciprocals of the
squares of the positive integers. It was finally solved in 1735 by Leonhard
Euler. In this paper, we propose a simple proof based on the Weierstrass Sine
product formula and L'H\^opital's rule.
|
[{'version': 'v1', 'created': 'Mon, 13 Mar 2023 23:27:44 GMT'}]
|
2023-03-15
|
[array(['Schiessl', 'Alois', ''], dtype=object)]
|
1,083 |
1312.1617
|
Fei Yang
|
Fei Yang and Jinsong Zeng
|
On the dynamics of a family of renormalization transformations
|
21 pages, 5 figures, to appear in J. Math. Anal. Appl
| null |
10.1016/j.jmaa.2013.11.068
| null |
math.DS math.CV
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study the family of renormalization transformations of the generalized
$d$--dimensional diamond hierarchical Potts model in statistical mechanic and
prove that their Julia sets and non-escaping loci are always connected, where
$d\geq 2$. In particular, we prove that their Julia sets can never be a
Sierpi\'{n}ski carpet if the parameter is real. We show that the Julia set is a
quasicircle if and only if the parameter lies in the unbounded capture domain
of these models. Moreover, the asymptotic formula of the Hausdorff dimension of
the Julia set is calculated as the parameter tends to infinity.
|
[{'version': 'v1', 'created': 'Thu, 5 Dec 2013 17:03:34 GMT'}]
|
2013-12-06
|
[array(['Yang', 'Fei', ''], dtype=object)
array(['Zeng', 'Jinsong', ''], dtype=object)]
|
1,084 |
1007.3737
|
Chang-Soon Park
|
Hirosi Ooguri and Chang-Soon Park
|
Holographic End-Point of Spatially Modulated Phase Transition
|
21 pages, 22 figures. v2: a note and a reference added
|
Phys.Rev.D82:126001,2010
|
10.1103/PhysRevD.82.126001
|
CALT-68-2796, IPMU10-0110
|
hep-th cond-mat.str-el gr-qc
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In the previous paper [arXiv:0911.0679], we showed that the
Reissner-Nordstrom black hole in the 5-dimensional anti-de Sitter space coupled
to the Maxwell theory with the Chern-Simons term is unstable when the
Chern-Simons coupling is sufficiently large. In the dual conformal field
theory, the instability suggests a spatially modulated phase transition. In
this paper, we construct and analyze non-linear solutions which describe the
end-point of this phase transition. In the limit where the Chern-Simons
coupling is large, we find that the phase transition is of the second order
with the mean field critical exponent. However, the dispersion relation with
the Van Hove singularity enhances quantum corrections in the bulk, and we argue
that this changes the order of the phase transition from the second to the
first. We compute linear response functions in the non-linear solution and find
an infinite off-diagonal DC conductivity in the new phase.
|
[{'version': 'v1', 'created': 'Wed, 21 Jul 2010 20:00:03 GMT'}
{'version': 'v2', 'created': 'Mon, 30 Aug 2010 20:25:18 GMT'}]
|
2010-12-24
|
[array(['Ooguri', 'Hirosi', ''], dtype=object)
array(['Park', 'Chang-Soon', ''], dtype=object)]
|
1,085 |
1402.0893
|
Marco Moretti Sala
|
M. Moretti Sala, K. Ohgushi, A. Al-Zein, Y. Hirata, G. Monaco and M.
Krisch
|
CaIrO3: a Spin-Orbit Mott Insulator Beyond the jeff = 1/2 Ground State
|
5 pages, 4 figures
|
Phys. Rev. Lett. 112, 176402 (2014)
|
10.1103/PhysRevLett.112.176402
| null |
cond-mat.str-el
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In CaIrO3 electronic correlation, spin-orbit coupling, and tetragonal crystal
field splitting are predicted to be of comparable strength. However, the nature
of its ground state is still object of debate, with contradictory experimental
and theoretical results. We probe the ground state of CaIrO3 and assess the
effective tetragonal crystal field splitting and spin-orbit coupling at play in
this system by means of resonant inelastic x-ray scattering. We conclude that
insulating CaIrO3 is not a jeff = 1/2 iridate and discuss the consequences of
our finding to the interpretation of previous experiments. In particular, we
clarify how the Mott insulating state in iridates can be readily extended
beyond the jeff = 1/2 ground state.
|
[{'version': 'v1', 'created': 'Tue, 4 Feb 2014 21:53:58 GMT'}]
|
2014-05-02
|
[array(['Sala', 'M. Moretti', ''], dtype=object)
array(['Ohgushi', 'K.', ''], dtype=object)
array(['Al-Zein', 'A.', ''], dtype=object)
array(['Hirata', 'Y.', ''], dtype=object)
array(['Monaco', 'G.', ''], dtype=object)
array(['Krisch', 'M.', ''], dtype=object)]
|
1,086 |
2012.05287
|
Sophie Spirkl
|
Maria Chudnovsky, Alex Scott, Paul Seymour, Sophie Spirkl
|
A note on simplicial cliques
|
Accepted manuscript; see DOI for journal version
|
Discrete Mathematics, Volume 344, Issue 9, September 2021, 112470
|
10.1016/j.disc.2021.112470
| null |
math.CO
|
http://creativecommons.org/licenses/by-nc-nd/4.0/
|
Motivated by an application in condensed matter physics and quantum
information theory, we prove that every non-null even-hole-free claw-free graph
has a simplicial clique, that is, a clique $K$ such that for every vertex $v
\in K$, the set of neighbours of $v$ outside of $K$ is a clique. In fact, we
prove the existence of a simplicial clique in a more general class of graphs
defined by forbidden induced subgraphs.
|
[{'version': 'v1', 'created': 'Wed, 9 Dec 2020 19:55:23 GMT'}
{'version': 'v2', 'created': 'Fri, 1 Oct 2021 16:11:41 GMT'}]
|
2021-10-04
|
[array(['Chudnovsky', 'Maria', ''], dtype=object)
array(['Scott', 'Alex', ''], dtype=object)
array(['Seymour', 'Paul', ''], dtype=object)
array(['Spirkl', 'Sophie', ''], dtype=object)]
|
1,087 |
2304.11932
|
Philippe Schnoebelen
|
Philippe Schnoebelen and Julien Veron
|
On arch factorization and subword universality for words and compressed
words
|
Accepted for publication in Proc. 14th Int. Conf. Combinatorics on
Words (WORDS 2023)
| null | null | null |
cs.FL
|
http://creativecommons.org/licenses/by-nc-nd/4.0/
|
Using arch-jumping functions and properties of the arch factorization of
words, we propose a new algorithm for computing the subword circular
universality index of words. We also introduce the subword universality
signature for words, that leads to simple algorithms for the universality
indexes of SLP-compressed words.
|
[{'version': 'v1', 'created': 'Mon, 24 Apr 2023 09:17:37 GMT'}]
|
2023-04-25
|
[array(['Schnoebelen', 'Philippe', ''], dtype=object)
array(['Veron', 'Julien', ''], dtype=object)]
|
1,088 |
2103.10111
|
Misa Ogata
|
Misa Ogata, Ryosuke Hirai, Kotaro Hijikawa
|
Observability of inflated companion stars after supernovae in massive
binaries
|
15 pages, 15 figures, Accepted for publication in MNRAS
| null |
10.1093/mnras/stab1439
| null |
astro-ph.SR astro-ph.HE
|
http://creativecommons.org/licenses/by/4.0/
|
We carry out a systematic study of the response of companion stars in massive
binaries after being impacted by supernova ejecta. A total of 720 1D stellar
evolution calculations are performed to follow the inflation and contraction of
the star in response to the energy injection and how it depends on various
parameters. We find that the maximum luminosity achieved during the inflated
phase is only dependent on the stellar mass and we derive an analytic formula
to describe the relation. There is also a tight correlation between the
duration of expansion and the intersected energy. These correlations will be
useful to constrain pre-supernova binary parameters from future detections of
inflated companions. We also discuss the possible outcomes of the binary system
when the companion inflation is taken into account. Based on simple binary
population synthesis, we estimate that $\sim$1-3% of stripped-envelope
supernovae may have observable inflated companions. Finally, we apply our
models to the observed companion of SN2006jc and place strong constraints on
the possible pre-supernova binary parameters.
|
[{'version': 'v1', 'created': 'Thu, 18 Mar 2021 09:37:19 GMT'}
{'version': 'v2', 'created': 'Thu, 27 May 2021 11:22:36 GMT'}]
|
2021-05-28
|
[array(['Ogata', 'Misa', ''], dtype=object)
array(['Hirai', 'Ryosuke', ''], dtype=object)
array(['Hijikawa', 'Kotaro', ''], dtype=object)]
|
1,089 |
hep-ph/9705381
|
Jiri Chyla
|
Jiri Chyla, Jiri Rames
|
Jet rates in deep inelastic scattering: wherefrom comes the sensitivity
to \alpha_s?
|
13 pages, Latex with macro for Zhys. C., 6 figures in PS format
attached, to be published in ZPhys. C
| null | null |
PRA-HEP/97-7
|
hep-ph
| null |
For theoretically consistent determination of $\alpha_s$ from jet rates in
deep inelastic scattering the dependence on $\alpha_s$ of parton distribution
functions is in principle as important as that of hard scattering
cross-sections. For the kinematical region accessible at HERA we investigate in
detail numerical importance of these two sources of the $\alpha_s$ dependence
of jet rates.
|
[{'version': 'v1', 'created': 'Wed, 21 May 1997 15:48:09 GMT'}]
|
2007-05-23
|
[array(['Chyla', 'Jiri', ''], dtype=object)
array(['Rames', 'Jiri', ''], dtype=object)]
|
1,090 |
1502.01733
|
Othman Soufan
|
Othman Soufan and Samer Arafat
|
Arrhythmia Detection using Mutual Information-Based Integration Method
|
6 pages, 1 figure, 7 tables, WConSC 2011 conference
http://www.ece.ualberta.ca/~reform/WConSC/ (2011)
| null | null | null |
cs.CE cs.LG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The aim of this paper is to propose an application of mutual
information-based ensemble methods to the analysis and classification of heart
beats associated with different types of Arrhythmia. Models of multilayer
perceptrons, support vector machines, and radial basis function neural networks
were trained and tested using the MIT-BIH arrhythmia database. This research
brings a focus to an ensemble method that, to our knowledge, is a novel
application in the area of ECG Arrhythmia detection. The proposed classifier
ensemble method showed improved performance, relative to either majority voting
classifier integration or to individual classifier performance. The overall
ensemble accuracy was 98.25%.
|
[{'version': 'v1', 'created': 'Thu, 5 Feb 2015 21:31:25 GMT'}]
|
2015-02-09
|
[array(['Soufan', 'Othman', ''], dtype=object)
array(['Arafat', 'Samer', ''], dtype=object)]
|
1,091 |
1404.1525
|
John Goodrick
|
John Goodrick, Byunghan Kim, and Alexei Kolesnikov
|
Type-amalgamation properties and polygroupoids in stable theories
|
37 pages
| null | null | null |
math.LO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We show that in a stable first-order theory, the failure of
higher-dimensional type amalgamation can always be witnessed by algebraic
structures which we call n-ary polygroupoids. This generalizes a result of
Hrushovski that failures of 4-amalgamation in stable theories are witnessed by
definable groupoids (which are 2-ary polygroupoids in our terminology). The
n-ary polygroupoids are definable in a mild expansion of the language (adding a
unary predicate for an infinite Morley sequence).
|
[{'version': 'v1', 'created': 'Sat, 5 Apr 2014 22:21:44 GMT'}]
|
2014-04-08
|
[array(['Goodrick', 'John', ''], dtype=object)
array(['Kim', 'Byunghan', ''], dtype=object)
array(['Kolesnikov', 'Alexei', ''], dtype=object)]
|
1,092 |
1111.2559
|
Jose I. Liberati
|
Carina Boyallian and Jos\'e I. Liberati
|
On pseudo-bialgebras
|
arXiv admin note: substantial text overlap with arXiv:math/0007121
| null | null | null |
math.QA math-ph math.MP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study pseudoalgebras from the point of view of pseudo-dual of classical
Lie coalgebra structures. We define the notions of Lie H-coalgebra and Lie
pseudo-bialgebra. We obtain the analog of the CYBE, the Manin triples and
Drinfeld's double for Lie pseudo-bialgebras. We also get a natural description
of the annihilation algebra associated to a pseudoalgebra as a convolution
algebra, clarifying this constructions in the theory of pseudoalgebras.
|
[{'version': 'v1', 'created': 'Thu, 10 Nov 2011 18:58:24 GMT'}]
|
2011-11-11
|
[array(['Boyallian', 'Carina', ''], dtype=object)
array(['Liberati', 'José I.', ''], dtype=object)]
|
1,093 |
2305.11996
|
Su-Kyoung Kim
|
Niklas Kueper, Kartik Chari, Judith B\"utef\"ur, Julia Habenicht, Su
Kyoung Kim, Tobias Rossol, Marc Tabie, Frank Kirchner, and Elsa Andrea
Kirchner
|
EEG and EMG dataset for the detection of errors introduced by an active
orthosis device
|
Revised references to our datasets, general corrections to typos, and
latex template format changes, Overall Content unchanged
| null | null | null |
cs.HC cs.AI cs.RO
|
http://creativecommons.org/licenses/by/4.0/
|
This paper presents a dataset containing recordings of the
electroencephalogram (EEG) and the electromyogram (EMG) from eight subjects who
were assisted in moving their right arm by an active orthosis device. The
supported movements were elbow joint movements, i.e., flexion and extension of
the right arm. While the orthosis was actively moving the subject's arm, some
errors were deliberately introduced for a short duration of time. During this
time, the orthosis moved in the opposite direction. In this paper, we explain
the experimental setup and present some behavioral analyses across all
subjects. Additionally, we present an average event-related potential analysis
for one subject to offer insights into the data quality and the EEG activity
caused by the error introduction. The dataset described herein is openly
accessible. The aim of this study was to provide a dataset to the research
community, particularly for the development of new methods in the asynchronous
detection of erroneous events from the EEG. We are especially interested in the
tactile and haptic-mediated recognition of errors, which has not yet been
sufficiently investigated in the literature. We hope that the detailed
description of the orthosis and the experiment will enable its reproduction and
facilitate a systematic investigation of the influencing factors in the
detection of erroneous behavior of assistive systems by a large community.
|
[{'version': 'v1', 'created': 'Fri, 19 May 2023 20:42:28 GMT'}
{'version': 'v2', 'created': 'Thu, 25 May 2023 10:33:50 GMT'}]
|
2023-05-26
|
[array(['Kueper', 'Niklas', ''], dtype=object)
array(['Chari', 'Kartik', ''], dtype=object)
array(['Bütefür', 'Judith', ''], dtype=object)
array(['Habenicht', 'Julia', ''], dtype=object)
array(['Kim', 'Su Kyoung', ''], dtype=object)
array(['Rossol', 'Tobias', ''], dtype=object)
array(['Tabie', 'Marc', ''], dtype=object)
array(['Kirchner', 'Frank', ''], dtype=object)
array(['Kirchner', 'Elsa Andrea', ''], dtype=object)]
|
1,094 |
cond-mat/0210333
|
Yukitoshi Motome
|
Nobuo Furukawa and Yukitoshi Motome
|
Spin-wave Hamiltonian in double-exchange systems
|
2 pages, to be published in Physica B (Proc. to LT23)
|
Physica B: Cond. Matter 329-333, 759 (2003)
|
10.1016/S0921-4526(02)02503-6
| null |
cond-mat.str-el cond-mat.stat-mech
| null |
A simple derivation of the effective spin-wave Hamiltonian for a
double-exchange system with infinitely large Hund's-rule coupling is
demonstrated. The formalism can be applied to models with arbitrary range of
hopping as well as those with randomness. The result shows that, within the
leading order of the 1/S expansion, one magnon excitation spectrum can be
described by the Heisenberg model.
|
[{'version': 'v1', 'created': 'Tue, 15 Oct 2002 22:29:46 GMT'}]
|
2007-05-23
|
[array(['Furukawa', 'Nobuo', ''], dtype=object)
array(['Motome', 'Yukitoshi', ''], dtype=object)]
|
1,095 |
1906.02883
|
Liwei Zhang
|
Xiaoying Dai and Liwei Zhang and Aihui Zhou
|
Adaptive Step Size Strategy for Orthogonality Constrained Line Search
Methods
|
27 pages, 5 figures, 4 tables
| null | null | null |
math.OC
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper, we propose an adaptive step size strategy for a class of line
search methods for orthogonality constrained minimization problems, which
avoids the classic backtracking procedure. We prove the convergence of the line
search methods equipped with our adaptive step size strategy under some mild
assumptions.We then apply the adaptive algorithm to electronic structure
calculations, which show that our strategy is efficient and recommended.
|
[{'version': 'v1', 'created': 'Fri, 7 Jun 2019 03:21:02 GMT'}
{'version': 'v2', 'created': 'Thu, 20 Feb 2020 07:24:47 GMT'}]
|
2020-02-21
|
[array(['Dai', 'Xiaoying', ''], dtype=object)
array(['Zhang', 'Liwei', ''], dtype=object)
array(['Zhou', 'Aihui', ''], dtype=object)]
|
1,096 |
2302.07549
|
Mila Nambiar
|
Milashini Nambiar and Supriyo Ghosh and Priscilla Ong and Yu En Chan
and Yong Mong Bee and Pavitra Krishnaswamy
|
Deep Offline Reinforcement Learning for Real-world Treatment
Optimization Applications
| null | null | null | null |
cs.LG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
There is increasing interest in data-driven approaches for recommending
optimal treatment strategies in many chronic disease management and critical
care applications. Reinforcement learning methods are well-suited to this
sequential decision-making problem, but must be trained and evaluated
exclusively on retrospective medical record datasets as direct online
exploration is unsafe and infeasible. Despite this requirement, the vast
majority of treatment optimization studies use off-policy RL methods (e.g.,
Double Deep Q Networks (DDQN) or its variants) that are known to perform poorly
in purely offline settings. Recent advances in offline RL, such as Conservative
Q-Learning (CQL), offer a suitable alternative. But there remain challenges in
adapting these approaches to real-world applications where suboptimal examples
dominate the retrospective dataset and strict safety constraints need to be
satisfied. In this work, we introduce a practical and theoretically grounded
transition sampling approach to address action imbalance during offline RL
training. We perform extensive experiments on two real-world tasks for diabetes
and sepsis treatment optimization to compare performance of the proposed
approach against prominent off-policy and offline RL baselines (DDQN and CQL).
Across a range of principled and clinically relevant metrics, we show that our
proposed approach enables substantial improvements in expected health outcomes
and in accordance with relevant practice and safety guidelines.
|
[{'version': 'v1', 'created': 'Wed, 15 Feb 2023 09:30:57 GMT'}
{'version': 'v2', 'created': 'Tue, 13 Jun 2023 12:24:32 GMT'}]
|
2023-06-14
|
[array(['Nambiar', 'Milashini', ''], dtype=object)
array(['Ghosh', 'Supriyo', ''], dtype=object)
array(['Ong', 'Priscilla', ''], dtype=object)
array(['Chan', 'Yu En', ''], dtype=object)
array(['Bee', 'Yong Mong', ''], dtype=object)
array(['Krishnaswamy', 'Pavitra', ''], dtype=object)]
|
1,097 |
1607.03598
|
Bikash Bhattacharjya
|
Hiranmoy Pal, Bikash Bhattacharjya
|
Pretty Good State Transfer on Circulant Graphs
| null |
The Electronic Journal of Combinatorics, 24(2): P2.23 (2017)
| null | null |
math.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Let $G$ be a graph with adjacency matrix $A$. The transition matrix of $G$
relative to $A$ is defined by $H(t):=\exp{\left(-itA\right)},\;t\in\Rl$. The
graph $G$ is said to admit pretty good state transfer between a pair of
vertices $u$ and $v$ if there exists a sequence of real numbers $\{t_k\}$ and a
complex number $\gamma$ of unit modulus such that
$\lim\limits_{k\rightarrow\infty} H(t_k) e_u=\gamma e_v.$ We find that pretty
good state transfer occurs in a cycle on $n$ vertices if and only if $n$ is a
power of two and it occurs between every pair of antipodal vertices. In
addition, we look for pretty good state transfer in more general circulant
graphs. We prove that union (edge disjoint) of an integral circulant graph with
a cycle, each on $2^k$ $(k\geq 3)$ vertices, admits pretty good state transfer.
The complement of such union also admits pretty good state transfer. This
enables us to find some non-circulant graphs admitting pretty good state
transfer. Among the complement of cycles we also find a class of graphs not
exhibiting pretty good state transfer.
|
[{'version': 'v1', 'created': 'Wed, 13 Jul 2016 06:04:17 GMT'}]
|
2019-01-08
|
[array(['Pal', 'Hiranmoy', ''], dtype=object)
array(['Bhattacharjya', 'Bikash', ''], dtype=object)]
|
1,098 |
1312.4916
|
Marco Schreck MS
|
M. Schreck
|
Quantum field theoretic properties of Lorentz-violating operators of
nonrenormalizable dimension in the photon sector
|
25 pages, 2 figures
|
Phys. Rev. D 89, 105019 (2014)
|
10.1103/PhysRevD.89.105019
| null |
hep-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In the context of the nonminimal Standard-Model Extension a special subset of
the CPT-even higher-dimensional operators in the photon sector is discussed
from a quantum-field theoretical point of view. The modified dispersion laws,
photon polarization vectors plus the gauge field propagator are obtained and
their properties are analyzed. It is demonstrated that for certain sectors of
the modified theory a puzzle arises for the optical theorem at tree-level. This
is followed by a discussion of how it can be interpreted and resolved at first
order Lorentz violation. Furthermore the commutator of two gauge fields that
are evaluated at different spacetime points is obtained and discussed. The
structure of the theory is shown to resemble the structure of the modification
based on the corresponding dimension-4 operator. However some properties are
altered due to the nonrenormalizable nature of the theory considered. The
results provide more insight into the characteristics of Lorentz-violating
quantum field theories that rest upon contributions of nonrenormalizable
dimension.
|
[{'version': 'v1', 'created': 'Tue, 17 Dec 2013 19:53:17 GMT'}]
|
2014-05-28
|
[array(['Schreck', 'M.', ''], dtype=object)]
|
1,099 |
2211.00231
|
Bo-Qiang Ma
|
Yanqi Huang, Bo-Qiang Ma
|
Ultra-high energy cosmic neutrinos from gamma-ray bursts
|
8 latex pages, 3 figures, final version for journal publication
| null |
10.1016/j.fmre.2022.05.022
| null |
astro-ph.HE gr-qc hep-ph
|
http://creativecommons.org/licenses/by/4.0/
|
Based on recent proposal to associate IceCube TeV and PeV neutrino events
with gamma-ray bursts~(GRBs) by considering the Lorentz violation of neutrinos,
we provide a new estimate on the GRB neutrino flux and such result is much
bigger than previous results by the IceCube Collaboration. Among these 24
neutrino ``shower" events above 60~TeV, 12 events are associated with GRBs.
Such result is comparable with the prediction from GRB fireball models.
Analysis of track events provide consistent result with the shower events to
associate high energy cosmic neutrinos with GRBs under the same Lorentz
violation features of neutrinos. We also make a background estimation and
reveal GRBs as a significant source for the ultra-high energy IceCube neutrino
events. Our work supports the Lorentz violation and $CPT$-violation of
neutrinos, indicating new physics beyond relativity.
|
[{'version': 'v1', 'created': 'Tue, 1 Nov 2022 02:36:59 GMT'}
{'version': 'v2', 'created': 'Fri, 4 Nov 2022 14:23:41 GMT'}]
|
2022-11-07
|
[array(['Huang', 'Yanqi', ''], dtype=object)
array(['Ma', 'Bo-Qiang', ''], dtype=object)]
|
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.