The numerical range in the second dual of a Banach algebra

DOI10.1017/S0305004100058187zbMath0461.46035MaRDI QIDQ3910955

Roger R. Smith

Publication date: 1981

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

zbMATH Keywords

numerical rangecompact convex setrenorming problem for approximate identities in Banach algebras

Mathematics Subject Classification ID

Numerical range, numerical radius (47A12) General theory of topological algebras (46H05) Convex sets in topological linear spaces; Choquet theory (46A55) Ideals and subalgebras (46H10)

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Cites Work

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• Approximate identities and factorization in Banach modules
• Linear extensions, projections, and split faces
• Tensor products of compact convex stes
• On Banach space valued extensions from split faces
• Cohen's Factorization Method Using an Algebra of Analytic Functions
• APPLICATIONS OF CONVEXITY AND M-IDEAL THEORY TO QUOTIENT BANACH ALGEBRAS
• Approximate Identities in Normed Algebras