Unilaterally Invertible Normals are Invertible

DOI10.1093/qjmath/52.2.229zbMath0995.46031OpenAlexW2143102111MaRDI QIDQ2730928

Philip G. Spain

Publication date: 15 October 2002

Published in: The Quarterly Journal of Mathematics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1093/qjmath/52.2.229

zbMATH Keywords

spatial numerical rangeunilaterally invertible

Mathematics Subject Classification ID

General theory of topological algebras (46H05)

Related Items (3)

Numerical range submultiplicity ⋮ Characterizations of EP and normal Banach algebra elements and Banach space operators ⋮ Right (or left) invertibility of bounded and unbounded operators and applications to the spectrum of products

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