A gap between hyponormality and subnormality for block Toeplitz operators

DOI10.1016/j.jmaa.2011.04.089zbMath1221.47052OpenAlexW2058167765MaRDI QIDQ549823

In Sung Hwang, Woo Young Lee, Dong-O. Kang

Publication date: 18 July 2011

Published in: Journal of Mathematical Analysis and Applications (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1016/j.jmaa.2011.04.089

zbMATH Keywords

subnormalhyponormalblock Toeplitz operators2-hyponormalmatrix-valued trigonometric polynomials

Mathematics Subject Classification ID

Subnormal operators, hyponormal operators, etc. (47B20) Toeplitz operators, Hankel operators, Wiener-Hopf operators (47B35)

Related Items (5)

Normal singular Cauchy integral operators with operator-valued symbols ⋮ A remark on hyponormality of block Toeplitz operators on the weighted Bergman spaces ⋮ Hyponormality of Toeplitz operators in several variables by the weighted shifts approach ⋮ Remark on complex symmetric operator matrices ⋮ Hyponormality of Toeplitz operators on the weighted Bergman space with matrix-valued circulant symbols

Cites Work

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• Hyponormality of block Toeplitz operators
• Which subnormal Toeplitz operators are either normal or analytic?
• Towards a model theory for 2-hyponormal operators.
• Subnormal operators
• Joint hyponormality of Toeplitz pairs
• Hyponormal Toeplitz Operators and Extremal Problems of Hardy Spaces
• Hyponormality of Toeplitz Operators
• Hyponormality and spectra of Toeplitz operators

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