Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Relativistic stellar model admitting a quadratic equation of state   A class of solutions describing the interior of a static spherically
symmetric compact anisotropic star is reported. The analytic solution has been
obtained by utilizing the Finch and Skea ({\it Class. Quant. Grav.} {\bf 6}
(1989) 467) ansatz for the metric potential $g_{rr}$ which has a clear
geometric interpretation for the associated background space-time. Based on
physical grounds appropriate bounds on the model parameters have been obtained
and it has been shown that the model admits an equation of state (EOS) which is
quadratic in nature.

14
The categories of this paper are: math-ph
7
The categories of this paper are: hep-th
30
The categories of this paper are: q-alg
3
The categories of this paper are: physics
22
The categories of this paper are: chao-dyn
19
The categories of this paper are: eess
31
The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con
2
The categories of this paper are: math
1
The categories of this paper are: cs
28
The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
4
The categories of this paper are: cond-mat