Vol. 25, No. 1, 1968

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Quasi-similarity for spectral operators on Banach spaces

L. Tzafriri

Vol. 25 (1968), No. 1, 197–217
Abstract

The unitary equivalence for normal operators is generalized for a large class of spectral operators on Banach spaces. This generalization which is called quasi-similarity coincides with the semi-similarity introduced by Feldzamen in the particular case of Hilbert spaces and for it the Weyr characteristic forms a complete set of invariants.

Mathematical Subject Classification
Primary: 47.30
Milestones
Received: 1 September 1966
Published: 1 April 1968
Authors
L. Tzafriri