NORMS, STATES AND NUMERICAL RANGES ON DIRECT SUMS

DOI10.1524/ANLY.1991.11.23.155zbMath0765.46037OpenAlexW2332502600MaRDI QIDQ3986113

A. K. Gaur, Zdislav V. Kovarik

Publication date: 27 June 1992

Published in: Analysis (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1524/anly.1991.11.23.155

zbMATH Keywords

operator normsnumerical rangesstate preserving operatorsdirect sums of Banach algebrasregular norms

Mathematics Subject Classification ID

General theory of commutative topological algebras (46J05) Numerical range, numerical radius (47A12) Banach algebras of differentiable or analytic functions, (H^p)-spaces (46J15) General theory of topological algebras (46H05)

Related Items (3)

Uniqueness of the uniform norm and adjoining identity in Banach algebras ⋮ On \(A\)-convex norms on commutative algebras ⋮ Norms on Unitizations of Banach Algebras

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