The Numerical Range in Banach Algebras and Complex Functions of Exponential type

DOI10.1112/blms/3.1.27zbMath0226.46055OpenAlexW1986247970MaRDI QIDQ5633124

Béla Bollobás

Publication date: 1971

Published in: Bulletin of the London Mathematical Society (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1112/blms/3.1.27

Mathematics Subject Classification ID

Numerical range, numerical radius (47A12) General theory of topological algebras (46H05) Functional calculus in topological algebras (46H30)

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