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Class of operators with superiorly closed numerical ranges - MaRDI portal

Class of operators with superiorly closed numerical ranges

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Publication:2415066

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DOI10.15352/AOT.1806-1387zbMATH Open1423.47002OpenAlexW2913659127MaRDI QIDQ2415066

Abderrahim Baghdad, Mohamed Chraibi Kaadoud

Publication date: 20 May 2019

Published in: Advances in Operator Theory (Search for Journal in Brave)

Full work available at URL: https://projecteuclid.org/euclid.aot/1551495627

zbMATH Keywords

numerical range spectral radius spectrum compact operator numerical radius

Mathematics Subject Classification ID

Hermitian and normal operators (spectral measures, functional calculus, etc.) (47B15) Subnormal operators, hyponormal operators, etc. (47B20) Numerical range, numerical radius (47A12) Commutators, derivations, elementary operators, etc. (47B47)

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