Another Simple Proof of a Theorem of Chandler Davis

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dc.creatorRivin, Igor
dc.date2002-08-28
dc.date2002-10-26
dc.date.accessioned2026-07-07T04:50:26Z
dc.date.available2026-07-07T04:50:26Z
dc.descriptionIn 1957, Chandler Davis proved that unitarily invariant convex functions on the space of hermitian matrices are precisely those which are convex and symmetrically invariant on the set of diagonal matrices. We give a simple perturbation theoretic proof of this result. (Davis' argument was also very short, though based on completely different ideas).
dc.description3 pages
dc.identifierhttps://arxiv.org/abs/math/0208223
dc.identifierhttp://arxiv.org/abs/math/0208223
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/64794
dc.subjectFunctional Analysis
dc.subjectRings and Algebras
dc.subject15A15; 47A75
dc.titleAnother Simple Proof of a Theorem of Chandler Davis
dc.typetext

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