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On joint spectra of non-commuting hyponormal operators
Published online by Cambridge University Press: 17 April 2009
Abstract
We show that the left joint spectrum of an arbitrary n-tuple of hyponormal Hilbert space operators can be obtained from the spectral set γ introduced by McIntosh and Pryde. A dual statement for cohyponormal operators is also true. The result is a generalisation of a theorem proved by Pryde and the author for normal operators.
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- Research Article
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- Copyright © Australian Mathematical Society 2001
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