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On the unitary invariance of the numerical radius

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Publication:1252398
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DOI10.2140/pjm.1978.75.383zbMath0393.15016OpenAlexW1978854333MaRDI QIDQ1252398

Ivan Filippenko, Marvin Marcus

Publication date: 1978

Published in: Pacific Journal of Mathematics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.2140/pjm.1978.75.383


zbMATH Keywords

EigenvaluesComplex MatricesEigenpolygonNumerical RadiusUnitary InvarianceUnitary Matrix


Mathematics Subject Classification ID

Norms of matrices, numerical range, applications of functional analysis to matrix theory (15A60) Quadratic and bilinear forms, inner products (15A63)


Related Items (5)

A biography of Marvin Marcus ⋮ The numerical range of derivations ⋮ Induced operators on symmetry classes of tensors ⋮ Linear operators preserving the decomposable numerical range ⋮ On the generalizedmth decomposable numerical radius on symmetry classes of tensors




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