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UNBOUNDED HERMITIAN OPERATORS ON KOLASKI SPACES

Published online by Cambridge University Press:  30 August 2013

JAMES JAMISON
Affiliation:
Department of Mathematical Sciences, The University of Memphis, Memphis, TN 38152, USA e-mail: jjamison@memphis.edu; rbryant1@memphis.edu
RAENA KING
Affiliation:
Department of Mathematical Sciences, The University of Memphis, Memphis, TN 38152, USA e-mail: jjamison@memphis.edu; rbryant1@memphis.edu
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Abstract

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We investigate strongly continuous one-parameter (C0) groups of isometries acting on certain spaces of analytical functions which were introduced by Kolaski (C. J. Kolaski, Isometries of some smooth normed spaces of analytic functions, Complex Var. Theory Appl. 10(2–3) (1988), 115–122). We characterize the generators of these groups of isometries and also the spectrum of the generators. We provide an example on the Bloch space of an unbounded hermitian operator with non-compact resolvent.

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Type
Research Article
Copyright
Copyright © Glasgow Mathematical Journal Trust 2013