Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Chaos around the superposition of a black-hole and a thin disk   Motivated by the strong astronomical evidences supporting that huge
black-holes might inhabit the center of many active galaxies, we have studied
the integrability of oblique orbits of test particles around the exact
superposition of a black-hole and a thin disk. We have considered the
relativistic and the Newtonian limits. Exhaustive numerical analyses were
performed, and bounded zones of chaotic behavior were found for both limits. An
intrinsic relativistic gravitational effect is detected: the chaoticity of
trajectories that do not cross the disk.

1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
8
The categories of this paper are: hep-ex
21
The categories of this paper are: adap-org
36
The categories of this paper are: cmp-lg
19
The categories of this paper are: eess
13
The categories of this paper are: quant-ph
24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
4
The categories of this paper are: cond-mat
35
The categories of this paper are: mtrl-th
16
The categories of this paper are: stat
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom