Where the numerical range subtends a right angle

DOI10.1080/03081088008817355zbMath0437.15008OpenAlexW1987699898MaRDI QIDQ3877807

C. S. Ballantine

Publication date: 1980

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

Full work available at URL: https://doi.org/10.1080/03081088008817355

zbMATH Keywords

numerical range

Mathematics Subject Classification ID

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

Cites Work

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• Numerical range of a matrix: Some effective criteria

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