Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Frobenius-Schur theorem for Hopf algebras   In this note we prove a generalization of the Frobenius-Schur theorem for
finite groups for the case of semisimple Hopf algebra over an algebraically
closed field of characteristic 0. A similar result holds in characteristic $p >
2$ if the Hopf algebra is also cosemisimple. In fact we show a more general
version for any finite-dimensional semisimple algebra with an involution.

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The categories of this paper are: astro-ph
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The categories of this paper are: hep-th
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The categories of this paper are: stat
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The categories of this paper are: funct-an
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The categories of this paper are: cond-mat
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The categories of this paper are: patt-sol
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The categories of this paper are: nlin
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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: q-alg
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The categories of this paper are: mtrl-th
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The categories of this paper are: econ
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The categories of this paper are: plasm-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: cs
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The categories of this paper are: supr-con