The boundary of theq-numerical range of a reducible matrix

DOI10.1080/03081080600979205zbMath1128.15014OpenAlexW1987799703MaRDI QIDQ3427137

Hiroshi Nakazato, Mao-Ting Chien

Publication date: 14 March 2007

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

Full work available at URL: https://doi.org/10.1080/03081080600979205

zbMATH Keywords

algorithm\(q\)-numerical range

Mathematics Subject Classification ID

Norms of matrices, numerical range, applications of functional analysis to matrix theory (15A60)

Related Items (3)

The \(q\)-numerical range of a reducible matrix via a normal operator ⋮ Birkhoff-James approximate orthogonality sets and numerical ranges ⋮ Perturbation of the \(q\)-numerical radius of a weighted shift operator

Cites Work

• The constrained bilinear form and the C-numerical range
• Boundary generating curves of the \(c\)-numerical range
• Some convexity theorems for the generalized numerical ranges
• Some Results on the q-Numerical
• On the boundary of theC-numerical range of a matrix
• The boundary of the range of a constrained sesquilinear form
• The q-numerical range and the Davis-Wielandt shell of reducible 3 × 3 matrices
• Theq-numerical ranges of normal operators
• Über den Wertevorrat einer Matrix

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