Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Analysis of Initial Conditions for the LTB Model   The Caushy problem in the LTB model is formulated. The rules of calculating
three undetermined functions which defined a solution in the LTB model are
presented. One example of exact nonhomogeneous model is studied. The limit
transformation to the FRW model is shown.

14
The categories of this paper are: math-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: eess
6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th
17
The categories of this paper are: q-fin
35
The categories of this paper are: mtrl-th
26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci
2
The categories of this paper are: math
11
The categories of this paper are: hep-lat
13
The categories of this paper are: quant-ph
18
The categories of this paper are: econ
25
The categories of this paper are: patt-sol
34
The categories of this paper are: chem-ph
8
The categories of this paper are: hep-ex