On Banach algebra elements of thin numerical range

DOI10.1017/S0305004100000645zbMath0423.46035MaRDI QIDQ3857310

Roger R. Smith

Publication date: 1979

Published in: Mathematical Proceedings of the Cambridge Philosophical Society (Search for Journal in Brave)

zbMATH Keywords

numerical radiushermitian elementsM- idealthin numerical range elements

Mathematics Subject Classification ID

Numerical range, numerical radius (47A12) General theory of topological algebras (46H05) Ideals and subalgebras (46H10)

Related Items

Arens regularity and local reflexivity principle for Banach algebras, On numerical ranges and roots., Operator algebras with contractive approximate identities

Cites Work

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