The case of equality in the matrix-valued triangle inequality

DOI10.2140/pjm.1979.82.279zbMath0412.15013OpenAlexW1971237092MaRDI QIDQ1260144

Robert C. Thompson

Publication date: 1979

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

Full work available at URL: https://doi.org/10.2140/pjm.1979.82.279

zbMATH Keywords

unitary matricesmatrix-valued triangle inequalitysemidefinite Hermitian matrix

Mathematics Subject Classification ID

Hermitian, skew-Hermitian, and related matrices (15B57) Miscellaneous inequalities involving matrices (15A45)

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