Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Christensen-Evans theorem and extensions of GNS-symmetric quantum Markov
  semigroups   In this note we prove a refined version of the Christensen-Evans theorem for
generators of uniformly continuous GNS-symmetric quantum Markov semigroups. We
use this result to show the existence of GNS-symmetric extensions of
GNS-symmetric quantum Markov semigroups. In particular, this implies that the
generators of GNS-symmetric quantum Markov semigroups on finite-dimensional von
Neumann algebra can be written in the form specified by Alicki's theorem.

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The categories of this paper are: adap-org
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The categories of this paper are: mtrl-th
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The categories of this paper are: dg-ga
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The categories of this paper are: q-bio
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The categories of this paper are: funct-an
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The categories of this paper are: alg-geom
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The categories of this paper are: acc-phys
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The categories of this paper are: nucl-th
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The categories of this paper are: supr-con
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The categories of this paper are: hep-ph
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The categories of this paper are: hep-th
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The categories of this paper are: comp-gas
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The categories of this paper are: patt-sol
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The categories of this paper are: atom-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: q-fin