Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Noncommutative Choquet Boundary of Periodic Weighted Shifts   The noncommutative Choquet boundary and the C*-envelope of operator systems
of the form Span{1,T,T*}, where T is a Hilbert space operator with normal-like
features, are studied. Such operators include normal operators, k-normal
operators, subnormal operators, and Toeplitz operators. Our main result is the
determination of the noncommutative Choquet boundary for an operator system
generated by an irreducible periodic weighted unilateral shift operator.

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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: stat
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The categories of this paper are: quant-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-ph
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The categories of this paper are: cond-mat
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The categories of this paper are: hep-th
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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: cmp-lg
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The categories of this paper are: physics
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The categories of this paper are: eess
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The categories of this paper are: adap-org
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The categories of this paper are: comp-gas
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The categories of this paper are: plasm-ph