Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Rotation, mass loss and pulsations of the star: an analytical model   The characteristics of the star with the "prescribed" density distribution
$\rho=\rho_c[1-(r/R)^\alpha]$ are analytically studied.

14
The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
33
The categories of this paper are: plasm-ph
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
2
The categories of this paper are: math
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
7
The categories of this paper are: hep-th
13
The categories of this paper are: quant-ph
8
The categories of this paper are: hep-ex
1
The categories of this paper are: cs
15
The categories of this paper are: nucl-ex
17
The categories of this paper are: q-fin
31
The categories of this paper are: ao-sci
29
The categories of this paper are: funct-an