Einige Bemerkungen über die polare Zerlegung einer regulären Matrix und die Geometrie der orthogonalen Gruppe. (Some remarks about the polar decomposition of a regular matrix and the geometry of the orthogonal group)

zbMath0617.15006MaRDI QIDQ1821841

Hansklaus Rummler

Publication date: 1986

Published in: L'Enseignement Mathématique. 2e Série (Search for Journal in Brave)

zbMATH Keywords

polar decompositionbest orthogonal approximationMorse-function

Mathematics Subject Classification ID

Factorization of matrices (15A23) Other geometric groups, including crystallographic groups (20H15) Orthogonal and unitary groups in metric geometry (51F25)

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