Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Non-linear Reconstruction of the Large Scale Structure   The linear algorithm of the the full non-linear large scale structure of
Gaussian random fields is extended here to to perform non-linear CRs. The
procedure consists of: (1) Using linear CR of low resolution data to construct
a high resolution realization of the underlying field, as if the linear theory
is valid; (2) Taking the linear CR backwards in time, by the linear theory, to
set initial conditions for an N-body simulation; (3) Forwarding the field in
time by an N-body code. An intermediate step might be introduced to `linearize'
the low resolution data.
  The non-linear CR can be applied to any observational data set that is
linearly related to the underlying field. Here it is applied to the IRAS 1.2Jy
catalog using 843 data points within a sphere of $6000 Km/s$, to reconstruct
the full non-linear large scale structure of our `local' universe.

9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
19
The categories of this paper are: eess
16
The categories of this paper are: stat
30
The categories of this paper are: q-alg
4
The categories of this paper are: cond-mat
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The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph