Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quasinormal resonances of near-extremal Kerr-Newman black holes   We study analytically the fundamental resonances of near-extremal, slowly
rotating Kerr-Newman black holes. We find a simple analytic expression for
these black-hole quasinormal frequencies in terms of the black-hole physical
parameters: omega=m Omega-2i pi T(l+1+n), where T and Omega are the temperature
and angular velocity of the black hole. The mode parameters l and m are the
spheroidal harmonic index and the azimuthal harmonic index of a co-rotating
mode, respectively. This analytical formula is valid in the regime Im omega <<
Re omega <<1/M, where M is the black-hole mass.

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The categories of this paper are: solv-int
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The categories of this paper are: funct-an
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The categories of this paper are: chao-dyn
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The categories of this paper are: nlin
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The categories of this paper are: dg-ga
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The categories of this paper are: eess
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-lat
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The categories of this paper are: q-fin
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The categories of this paper are: hep-ex
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The categories of this paper are: math
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The categories of this paper are: cmp-lg
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The categories of this paper are: nucl-ex
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The categories of this paper are: q-alg
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The categories of this paper are: econ
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The categories of this paper are: plasm-ph