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Generalized scalar operators as dilations

Authors: Hari Bercovici and Srdjan Petrović
Journal: Proc. Amer. Math. Soc. 123 (1995), 2173-2180
MSC: Primary 47A20; Secondary 47A45, 47B40
MathSciNet review: 1246516
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Abstract: It is shown that polynomially bounded operators on Banach spaces have polynomially bounded dilations which have spectrum in the unit circle and are generalized scalar. The proof also yields a description of all compressions of generalized scalar operators with spectrum in the unit circle.

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