Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spectra of orbifolds with cyclic fundamental groups   We give a simple geometric characterization of isospectral orbifolds covered
by spheres, complex projective spaces and the quaternion projective line having
cyclic fundamental group. The differential operators considered are
Laplace-Beltrami operators twisted by characters of the corresponding
fundamental group. To prove the characterization, we first give an explicit
description of their spectra by using generating functions. We also include
many isospectral examples.

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The categories of this paper are: gr-qc
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The categories of this paper are: hep-lat
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The categories of this paper are: cs
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The categories of this paper are: dg-ga
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The categories of this paper are: cond-mat
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The categories of this paper are: comp-gas
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The categories of this paper are: q-bio
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The categories of this paper are: supr-con
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The categories of this paper are: solv-int
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The categories of this paper are: math-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: plasm-ph
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The categories of this paper are: q-fin
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The categories of this paper are: adap-org
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The categories of this paper are: nucl-ex