Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Influence of the black hole spin on the chaotic particle dynamics within
  a dipolar halo   We investigate the role of the spin angular momentum of astrophysical black
holes in controlling the special relativistic chaotic dynamics of test
particles moving under the influence of a post-Newtonian pseudo-Kerr black hole
potential, along with a perturbative potential created by a asymmetrically
placed (dipolar) halo. Proposing a Lyapunov-like exponent to be the effective
measure of the degree of chaos observed in the system under consideration, it
has been found that black hole spin anti-correlates with the degree of chaos
for the aforementioned dynamics. Our findings have been explained applying the
general principles of dynamical systems analysis.

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The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
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The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph
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The categories of this paper are: q-fin
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The categories of this paper are: chao-dyn
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The categories of this paper are: physics
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The categories of this paper are: nlin
8
The categories of this paper are: hep-ex
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The categories of this paper are: plasm-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat
18
The categories of this paper are: econ