Numerical radius inequality for \(C_0\) contractions

DOI10.1016/j.laa.2007.11.017zbMath1157.47005OpenAlexW1977229245MaRDI QIDQ1002253

Pei Yuan Wu, Hwa-Long Gau, Ming-Cheng Tsai

Publication date: 25 February 2009

Published in: Linear Algebra and its Applications (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1016/j.laa.2007.11.017

zbMATH Keywords

numerical rangeunitary operatorquadratic operatornumerical radiuscompression of the shift

Mathematics Subject Classification ID

Numerical range, numerical radius (47A12) Canonical models for contractions and nonselfadjoint linear operators (47A45)

Related Items (4)

Numerical radii for tensor products of matrices ⋮ Scalar approximants of quadratic operators with applications ⋮ Operators with real parts at least ⋮ Circular numerical ranges of partial isometries

Cites Work

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• The numerical radius of a commuting product
• Numerical radii of zero-one matrices
• Numerical radii of simple powers
• Matricial ranges of quadratic operators
• An elementary proof of the power inequality for the numerical radius
• The numerical range of a product. II
• Numerical Radius Inequalities for Square-zero and Idempotent Operators
• Operator Radii of Commuting Products
• Two-Dimensional Representations of Uniform Algebras
• Dilation to inflations of s(φ)
• Some mapping theorems for the numerical range
• Generalized Interpolation in H ∞
• Mapping Theorems for the Numerical Range
• Multiplicative properties of the numerical radius in operator theory.

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