Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Anisotropic 2+1 dimensional black holes by gravitational decoupling   In the present paper, we analyze the well-known 2+1 dimensional black holes
(assuming a non-vanishing cosmological constant) in light of the gravitational
decoupling by the minimal geometric deformation approach. To illustrate our
results, we consider the BTZ geometry as the seed solution to generate new
anisotropic ones. To complement the study, the curvature scalars and the energy
conditions are analyzed.

27
The categories of this paper are: comp-gas
37
The categories of this paper are: supr-con
11
The categories of this paper are: hep-lat
20
The categories of this paper are: acc-phys
19
The categories of this paper are: eess
0
The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom
13
The categories of this paper are: quant-ph
26
The categories of this paper are: bayes-an
17
The categories of this paper are: q-fin
15
The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol