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Proceedings of the American Mathematical Society
Proceedings of the American Mathematical Society
ISSN 1088-6826(online) ISSN 0002-9939(print)


Unitary parts of generalized Toeplitz operators

Author: Jeffrey R. Butz
Journal: Proc. Amer. Math. Soc. 66 (1977), 95-98
MSC: Primary 47A65; Secondary 47B30
MathSciNet review: 0454695
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Abstract: For a generalized Toeplitz operator acting on a Hilbert space with unilateral shift, necessary and sufficient conditions are obtained for the existence of a nontrivial unitary part, and an explicit description of this unitary part is given.

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PII: S 0002-9939(1977)0454695-4
Article copyright: © Copyright 1977 American Mathematical Society