A remark on numerical range of semi-hyponormal operators

DOI10.1080/03081080902872215zbMath1207.47017OpenAlexW2059085678MaRDI QIDQ3589206

Muneo Chō, Tadasi Huruya

Publication date: 20 September 2010

Published in: Linear and Multilinear Algebra (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1080/03081080902872215

zbMATH Keywords

numerical rangeunilateral shift

Mathematics Subject Classification ID

Subnormal operators, hyponormal operators, etc. (47B20) Numerical range, numerical radius (47A12)

Related Items (1)

Spectral properties and numerical range of off-diagonal infinite-dimensional Hamiltonian operators

Cites Work

• Powers of \(p\)-hyponormal operators
• On p-hyponormal operators for \(0<p<1\)
• $p$–hyponormality is not translation–invariant

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