Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hidden Symmetries of Higher-Dimensional Black Hole Spacetimes   The paper contains a brief review of recent results on hidden symmetries in
higher dimensional black hole spacetimes. We show how the existence of a
principal CKY tensor (that is a closed non-degenerate conformal Killing-Yano
2-form) allows one to generate a `tower' of Killing-Yano and Killing tensors
responcible for hidden symmetries. These symmetries imply complete
integrability of geodesic equations and the complete separation of variables in
the Hamilton-Jacobi, Klein-Gordon and Dirac equations in the general
Kerr-NUT-(A)dS metrics.

32
The categories of this paper are: atom-ph
31
The categories of this paper are: ao-sci
2
The categories of this paper are: math
7
The categories of this paper are: hep-th
16
The categories of this paper are: stat
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
18
The categories of this paper are: econ
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
17
The categories of this paper are: q-fin
1
The categories of this paper are: cs
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int
21
The categories of this paper are: adap-org