Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Lower-dimensional Gauss-Bonnet Gravity and BTZ Black Holes   We consider the $D\to 3$ limit of Gauss-Bonnet gravity. We find two distinct
but similar versions of the theory and obtain black hole solutions for each.
For one theory the solution is an interesting generalization of the BTZ black
hole that does not have constant curvature but whose thermodynamics is
identical. The other theory admits a solution that is asymptotically AdS but
does not approach the BTZ black hole in the limit of small Gauss-Bonnet
coupling. We also discuss the distinction between our solutions and those
obtained by taking a $D\to 3$ limit of solutions to $D$-dimensional Einstein
Gauss-Bonnet gravity. We find that these latter metrics are not solutions of
the theories we consider except for particular constraints on the parameters.

1
The categories of this paper are: cs
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
36
The categories of this paper are: cmp-lg
32
The categories of this paper are: atom-ph
28
The categories of this paper are: alg-geom
12
The categories of this paper are: nucl-th
26
The categories of this paper are: bayes-an
15
The categories of this paper are: nucl-ex
22
The categories of this paper are: chao-dyn