Numerical Ranges and Reduction Theory

DOI10.1112/jlms/s2-29.1.164zbMath0514.47004OpenAlexW2074772276MaRDI QIDQ3660371

Gareth J. Knowles

Publication date: 1984

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

Full work available at URL: https://doi.org/10.1112/jlms/s2-29.1.164

zbMATH Keywords

approximating the inversenumerical range of a decomposable operatorspectrum of a decomposable operator on a Hilbert space

Mathematics Subject Classification ID

Spectrum, resolvent (47A10) Numerical range, numerical radius (47A12) Abstract approximation theory (approximation in normed linear spaces and other abstract spaces) (41A65) General (adjoints, conjugates, products, inverses, domains, ranges, etc.) (47A05) Spectral operators, decomposable operators, well-bounded operators, etc. (47B40)

Related Items (1)

Filtered products, direct integrals, and convex analysis of numerical ranges

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