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Spectral Type of One-Parameter Group of Unitary Operators with Transversal Group
Published online by Cambridge University Press: 22 January 2016
Extract
It is an important problem to determine the spectral type of automorphisms or flows on a probability measure space. We shall deal with a unitary operator U and a 1-parameter group of unitary operators {Ut} on a separable Hilbert space H, and discuss their spectral types, although U and {Ut} are not necessarily supposed to be derived from an automorphism or a flow respectively.
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- Copyright © Editorial Board of Nagoya Mathematical Journal 1968
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