\(a\)-numerical range on \(C^{\ast}\)-algebras

DOI10.1007/s11117-021-00825-6zbMath1489.46061OpenAlexW3133973814MaRDI QIDQ2055397

Mohamed Mabrouk, Abdellatif Bourhim

Publication date: 1 December 2021

Published in: Positivity (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1007/s11117-021-00825-6

zbMATH Keywords

numerical range\(C^{\ast}\)-algebras

Mathematics Subject Classification ID

Numerical range, numerical radius (47A12) General theory of (C^*)-algebras (46L05) Transformers, preservers (linear operators on spaces of linear operators) (47B49)

Related Items (5)

Further results on the \(a\)-numerical range in \(C^\ast\)-algebras ⋮ An extension of the \(a\)-numerical radius on \(C^\ast\)-algebras ⋮ \(A\)-spectral permanence property for \(C^\ast\)-algebras ⋮ Further inequalities for the \(\mathbb{A}\)-numerical radius of certain \(2 \times 2\) operator matrices ⋮ Essential numerical ranges of operators in semi-Hilbertian spaces

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