Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Twisted Exponents and Twisted Frobenius-Schur Indicators for Hopf
  Algebras   Classically, the exponent of a group is the least common multiple of the
orders of its elements. This notion was generalized by Etingof and Gelaki to
the context of Hopf algebras. Kashina, Sommerhauser and Zhu later observed that
there is a strong connection between exponents and Frobenius-Schur indicators.
In this paper, we introduce the notion of twisted exponents and show that there
is a similar relationship between the twisted exponent and the twisted
Frobenius-Schur indicators defined in previous work of the authors. In
particular, we exhibit a new formula for the twisted Frobenius-Schur indicators
and use it to prove periodicity and rationality statements for the twisted
indicators.

27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
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The categories of this paper are: chem-ph
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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: nucl-th
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
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The categories of this paper are: adap-org
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The categories of this paper are: cmp-lg
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The categories of this paper are: mtrl-th
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The categories of this paper are: ao-sci
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The categories of this paper are: q-alg
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The categories of this paper are: chao-dyn
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The categories of this paper are: patt-sol