Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Global classical solution to the Cauchy problem of 2D baratropic
  compressible Navier-Stokes system with large initial data   For periodic initial data with initial density, we establish the global
existence and uniqueness of strong and classical solutions for the
two-dimensional compressible Navier-Stokes equations with no restrictions on
the size of initial data provided the shear viscosity is a positive constant
and the bulk one is $\lam=\rho^{\b}$ with $\b>1.$

19
The categories of this paper are: eess
22
The categories of this paper are: chao-dyn
6
The categories of this paper are: astro-ph
36
The categories of this paper are: cmp-lg
1
The categories of this paper are: cs
8
The categories of this paper are: hep-ex
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
13
The categories of this paper are: quant-ph
25
The categories of this paper are: patt-sol
24
The categories of this paper are: dg-ga
4
The categories of this paper are: cond-mat
0
The categories of this paper are: hep-ph
14
The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph