Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Large time behavior of solutions to a diffusion approximation radiation
  hydrodynamics model   This paper concerns with the large time behavior of solutions to a diffusion
approximation radiation hydrodynamics model when the initial data is a small
perturbation around an equilibrium state. The global-in-time well-posedness of
solutions is achieved in Sobolev spaces depending on the Littlewood-Paley
decomposition technique together with certain elaborate energy estimates in
frequency space. Moreover, the optimal decay rate of the solution is also
yielded provided the initial data also satisfy an additional $L^1$ condition.
Meanwhile, the similar results of the diffusion approximation system without
the thermal conductivity could be also established.

18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph
8
The categories of this paper are: hep-ex
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas
28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess
0
The categories of this paper are: hep-ph
16
The categories of this paper are: stat
22
The categories of this paper are: chao-dyn