Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Note on the parametrized black hole quasinormal ringdown formalism   The parametrized black hole quasinormal ringdown formalism is useful to
compute quasinormal mode (QNM) frequencies if a master equation for the
gravitational perturbation around a black hole has a small deviation from the
Regge-Wheeler or Zerilli equation. In this formalism, the deviation of QNM
frequency from general relativity can be calculated by small deviation
parameters and model independent coefficients. In this paper, we derive
recursion relations for the model independent coefficients. Using these
relations, the higher order coefficients are written only by the lower order
coefficients. Thus, we only need the lower order coefficients when we
numerically compute the model independent coefficients.

20
The categories of this paper are: acc-phys
10
The categories of this paper are: q-bio
26
The categories of this paper are: bayes-an
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The categories of this paper are: econ
23
The categories of this paper are: solv-int
34
The categories of this paper are: chem-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: q-alg
25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
4
The categories of this paper are: cond-mat
33
The categories of this paper are: plasm-ph
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The categories of this paper are: eess
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The categories of this paper are: alg-geom
31
The categories of this paper are: ao-sci
8
The categories of this paper are: hep-ex