Spectral sets

J. J.  Koliha

ArticleOriginal scientific text

Title

Spectral sets

Authors ¹

Affiliations

Department of Mathematics, University of Melbourne, Parkville, Victoria 3052, Australia

Abstract

The paper studies spectral sets of elements of Banach algebras as the zeros of holomorphic functions and describes them in terms of existence of idempotents. A new decomposition theorem characterizing spectral sets is obtained for bounded linear operators.

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Title

Spectral sets

Affiliations

Abstract

Bibliography