Contracting positive approximation in trace norm

DOI10.1016/0024-3795(93)00336-XzbMath0829.47020MaRDI QIDQ1899383

Achouri Abdelhak

Publication date: 9 October 1995

Published in: Linear Algebra and its Applications (Search for Journal in Brave)

zbMATH Keywords

trace normcontracting positive approximation

Mathematics Subject Classification ID

Linear operators belonging to operator ideals (nuclear, (p)-summing, in the Schatten-von Neumann classes, etc.) (47B10) Approximation by positive operators (41A36)

Related Items

Remark on the positive contracting approximation

Cites Work

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• Approximation in trace norm by positive semidefinite matrices
• Best approximation of a nonnormal operator in the trace norm
• Approximation by positive operators