Linear combinations of hyponormal operators

DOI10.1216/RMJ-1988-18-3-695zbMath0676.47010OpenAlexW2080382893MaRDI QIDQ1122759

Waclaw Szymanski, John B. Conway

Publication date: 1988

Published in: Rocky Mountain Journal of Mathematics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1216/rmj-1988-18-3-695

zbMATH Keywords

subnormal operatorscommuting spaces of hyponormal operatorsconverse of Fuglede's theorem

Mathematics Subject Classification ID

Subnormal operators, hyponormal operators, etc. (47B20) Linear spaces of operators (47L05)

Related Items (18)

A characterization of \(k\)-hyponormality via weak subnormality. ⋮ Operators characterized by certain Cauchy-Schwarz type inequalities ⋮ ON THE NORM ATTAINING OPERATORS ⋮ On joint posinormality of operators ⋮ Linear combinations of isometries ⋮ On a class of jointly hyponormal Toeplitz operators ⋮ On the tensor products of operators ⋮ Solution of the quadratically hyponormal completion problem ⋮ $k$-hyponormality of finite rank perturbations of unilateral weighted shifts ⋮ Toeplitz operators hyponormal with the unilateral shift ⋮ A Subnormal Toeplitz Completion Problem ⋮ Joint hyponormality of Toeplitz pairs with rational symbols ⋮ Subnormality, analyticity and perturbations ⋮ Matrix Functions of Bounded Type: An Interplay Between Function Theory and Operator Theory ⋮ On Joint Hyponormality of Operators ⋮ Quartically hyponormal weighted shifts need not be 3-hyponormal ⋮ A Note on Joint Hyponormality ⋮ Towards a model theory for 2-hyponormal operators.

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