Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Circularly symmetric thin-shell wormholes in F(R) gravity with
  (2+1)-dimensions   Within the framework of $F(R)$ theories of gravity with (2+1)-dimensions and
constant scalar curvature $R$, we construct a family of thin-shell wormholes
with circular symmetry and we analyze the stability of the static
configurations under radial perturbations. We show an example of asymptotically
anti-de Sitter thin-shell wormholes with charge, finding that stable
configurations with normal matter are possible for a suitable range of the
parameters.

37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
4
The categories of this paper are: cond-mat
2
The categories of this paper are: math
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
16
The categories of this paper are: stat
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
25
The categories of this paper are: patt-sol
28
The categories of this paper are: alg-geom
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex