Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Global existence of solutions for the Einstein-Boltzmann system with
  cosmological constant in the Robertson-Walker space-time for arbitrarily
  large initial data   We prove a global in time existence theorem for the initial value problem for
the Einstein-Boltzmann system, with positive cosmological constant and
arbitrarily large initial data, in the spatially homogeneous case, in a
Robertson-Walker space-time.

18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom
32
The categories of this paper are: atom-ph
19
The categories of this paper are: eess
0
The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
26
The categories of this paper are: bayes-an
11
The categories of this paper are: hep-lat
16
The categories of this paper are: stat
29
The categories of this paper are: funct-an
3
The categories of this paper are: physics
13
The categories of this paper are: quant-ph
15
The categories of this paper are: nucl-ex
2
The categories of this paper are: math
4
The categories of this paper are: cond-mat