On the boundary of theC-numerical range of a normal matrix

DOI10.1080/03081088808817865zbMath0644.15017OpenAlexW2049200832MaRDI QIDQ3786576

João da Providência, Natália Bebiano

Publication date: 1988

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

Full work available at URL: https://doi.org/10.1080/03081088808817865

zbMATH Keywords

boundarynormal matrixC-numerical rangedifferentiable points

Mathematics Subject Classification ID

Norms of matrices, numerical range, applications of functional analysis to matrix theory (15A60) Convex sets in topological linear spaces; Choquet theory (46A55)

Related Items (2)

On the boundary of theC-numerical range of a matrix ⋮ Some Geometrical Properties of thec-Numerical Range of a Normal Matrix

Cites Work

• \(3\times 3\) orthostochastic matrices and the convexity of generalized numerical ranges
• Elementary inclusion relations for generalized numerical ranges
• On certain finite dimensional numerical ranges and numerical radii^†
• Nondifferentiabie points of ∂W_c(A)
• On the shape of the generalized numerical ranges
• A theorem on numerical range
• Normality and the Higher Numerical Range
• The Toeplitz-Hausdorff Theorem Explained

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