Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A new family of analytical anisotropic solutions by gravitational
  decoupling   This work is focused in the study of analytic anisotropic solutions to
Einstein's field equations, describing spherically symmetric and static
configurations by way of the gravitational decoupling through the method of
Minimal Geometric Deformation (MGD). For this we apply MGD to Heintzmann's
solution obtaining two new analytic and well behaved anisotropic solutions, in
which all their parameters such as the effective density, the effective radial
and tangential pressure, as well as radial and tangential sound speed, fulfill
each of the requirements for the physical acceptability available in the
literature.

32
The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
23
The categories of this paper are: solv-int
24
The categories of this paper are: dg-ga
3
The categories of this paper are: physics
12
The categories of this paper are: nucl-th
28
The categories of this paper are: alg-geom
2
The categories of this paper are: math
0
The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci
1
The categories of this paper are: cs
35
The categories of this paper are: mtrl-th
6
The categories of this paper are: astro-ph
9
The categories of this paper are: nlin
19
The categories of this paper are: eess
16
The categories of this paper are: stat