Bounds for the numerical radii of \(2\times 2\) operator matrices

DOI10.1007/s10013-023-00638-yMaRDI QIDQ6632164

Soumia Soltani, Abdelkader Frakis, Fuad Kittaneh

Publication date: 4 November 2024

Published in: Vietnam Journal of Mathematics (Search for Journal in Brave)

zbMATH Keywords

inequalityoperator normnumerical radius

Mathematics Subject Classification ID

Norms (inequalities, more than one norm, etc.) of linear operators (47A30) Numerical range, numerical radius (47A12) Operator matrices (47A08)

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