Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quasi-normal Modes of near-extremal black holes in Generalized
  spherically symmetric spacetime and Strong Cosmic Censorship Conjecture   A number of near-extremal conditions are utilized to simplify the equation of
motion of the neutral scalar perturbations in generalized spherically symmetric
black hole background into a differential equation with the P\"{o}schl-Teller
potential. An analytic formula for quasinormal frequencies is obtained. The
analytic formula is then used to investigate Strong Cosmic Censorship
conjectures~(SCC) of the generalized black hole spacetime for the smooth
initial data. The Christodoulou version of the SCC is found to be violated for
certain regions of the black hole parameter space including the black holes in
General Relativity while the $C^{1}$ version of the SCC is always valid.

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The categories of this paper are: math-ph
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The categories of this paper are: q-bio
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-ex
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The categories of this paper are: nlin
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The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
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The categories of this paper are: comp-gas
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The categories of this paper are: hep-lat
6
The categories of this paper are: astro-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: quant-ph
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The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
34
The categories of this paper are: chem-ph
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The categories of this paper are: nucl-th