Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Exact solution of the (0+1)-dimensional Boltzmann equation for a massive
  gas   We solve the one-dimensional boost-invariant kinetic equation for a
relativistic massive system with the collision term treated in the relaxation
time approximation. The result is an exact integral equation which can be
solved numerically by the method of iteration to arbitrary precision. We
compare predictions for the shear and bulk viscosities of a massive system with
those obtained from the exact solution. Finally, we compare the time evolution
of the bulk pressure obtained from our exact solution with results obtained
from the dynamical equations of second-order viscous hydrodynamics.

34
The categories of this paper are: chem-ph
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The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
1
The categories of this paper are: cs
17
The categories of this paper are: q-fin
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
19
The categories of this paper are: eess
36
The categories of this paper are: cmp-lg
37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
16
The categories of this paper are: stat
10
The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci