An Inclusion Theorem for the Matrix and Essential Ranges of Operators

DOI10.1112/jlms/s2-6.2.329zbMath0251.47006OpenAlexW2046066574MaRDI QIDQ5664427

F. F. Bonsall

Publication date: 1973

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

Full work available at URL: https://doi.org/10.1112/jlms/s2-6.2.329

Mathematics Subject Classification ID

Spectrum, resolvent (47A10) Linear operators in algebras (47C05)

Related Items (3)

Matrical extensions of the numerical range: a brief survey ⋮ Matrix-valued shell of an operator or relation ⋮ Algebraic degree in spatial matricial numerical ranges of linear operators

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