Sharpened forms of an inequality of von Neumann

DOI10.1007/BF01168002zbMath0631.47004MaRDI QIDQ1094648

Ky Fan

Publication date: 1987

Published in: Mathematische Zeitschrift (Search for Journal in Brave)

Full work available at URL: https://eudml.org/doc/173812

zbMATH Keywords

Schwarz's lemmainequality of von Neumann

Mathematics Subject Classification ID

Norms (inequalities, more than one norm, etc.) of linear operators (47A30) Functional calculus for linear operators (47A60)

Related Items (2)

Operator-valued typically real functions induced by a contraction ⋮ Ky Fan inequalities

Cites Work

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• Analytic functions of a proper contraction

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