Denseness of Operators Whose Second Adjoints Attain Their Numerical Radii

DOI10.2307/2046740zbMath0696.47006OpenAlexW4243254469MaRDI QIDQ3472685

María D. Acosta, R. Payá-Albert

Publication date: 1989

Full work available at URL: https://doi.org/10.2307/2046740

zbMATH Keywords

numerical radiuscompact perturbation

Mathematics Subject Classification ID

Numerical range, numerical radius (47A12) General (adjoints, conjugates, products, inverses, domains, ranges, etc.) (47A05) Duality and reflexivity in normed linear and Banach spaces (46B10)

Related Items (9)

Norm or numerical radius attaining polynomials on \(C(K\)) ⋮ The Bishop–Phelps–Bollobás Theorem: An Overview ⋮ A note on numerical radius attaining mappings ⋮ Vector-valued numerical radius and \(\sigma\)-porosity ⋮ On the Bishop-Phelps-Bollobás property for numerical radius in \(C(K)\) spaces ⋮ On norm-attaining mappings on Banach spaces ⋮ A counterexample on numerical radius attaining operators ⋮ Every real Banach space can be renormed to satisfy the denseness of numerical radius attaining operators ⋮ Denseness of operators which attain their numerical radius

Cites Work

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• On operators which attain their norm
• Density of numerical radius attaining operators on some reflexive spaces
• Numerical Radius-Attaining Operators on C(K)

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