A formula for the numerical range of elementary operators

DOI10.1155/2014/246301zbMath1318.47008OpenAlexW2029835427WikidataQ59047657 ScholiaQ59047657MaRDI QIDQ2449023

Mohamed Barraa

Publication date: 6 May 2014

Published in: ISRN Mathematical Analysis (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1155/2014/246301

zbMATH Keywords

numerical rangeelementary operators

Mathematics Subject Classification ID

Numerical range, numerical radius (47A12) Commutators, derivations, elementary operators, etc. (47B47)

Cites Work

• A note on unitary operators in \(C^ *\)-algebras
• Growth conitions and the numerical range in a Banach algebra
• Complex strict and uniform convexity and hyponormal operators
• Numerical ranges of derivations
• The numerical range of elementary operators. II
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