Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Kinetic and Chemical Equilibration in Scalar phi^4 Theory   Approximations based on the 2PI effective action are used to investigate the
process of equilibration in phi^4 theory in 3+1 dimensions, both in the
symmetric and broken phase. A special emphasis is put on the study of the
kinetic and chemical equilibration.

37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess
12
The categories of this paper are: nucl-th
35
The categories of this paper are: mtrl-th
29
The categories of this paper are: funct-an
6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas