Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Gravity with Perimeter Action and Gravitational Singularities   We consider the perturbation of the Schwarzschild solution by the perimeter
action. The asymptotic behaviour of the solution at infinity and at the horizon
are calculated and analysed in the first approximation. The perturbation is
characterised by the ratio of the Plank length to the Schwarzschild radius. It
is demonstrated that in the modified theory appear space-time regions of the
Schwarzschild radius scale that are unreachable by test particles. These
regions are located in the places where standard theory of gravity has
singularities.

22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
3
The categories of this paper are: physics
1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
25
The categories of this paper are: patt-sol
10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
23
The categories of this paper are: solv-int