Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Optical properties of self-similar structure in Lemaitre-Tolman-Bondi
  model   We explore the effects coming from the nested structures on propagation of
radial light rays going through them in the simple self-similar configuration
containing pairs of voids and overdense regions. Each pair can be described
with the Lemaitre-Tolman-Bondi metric and is composed of interior dust ball and
exterior Schwarzschild region. A relation between the redshift and amount of
nested pairs is studied numerically in order to answer a question whether a
strong relativistic effect can be obtained when every component of the
structure can be described by the weak field approximation of general
relativity.

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The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga
30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
18
The categories of this paper are: econ
12
The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
13
The categories of this paper are: quant-ph
17
The categories of this paper are: q-fin
3
The categories of this paper are: physics
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
0
The categories of this paper are: hep-ph
1
The categories of this paper are: cs