Positive Approximants

DOI10.2307/1996605zbMath0264.47020OpenAlexW4237244047MaRDI QIDQ5680650

Richard Bouldin

Publication date: 1973

Full work available at URL: https://doi.org/10.2307/1996605

Mathematics Subject Classification ID

Hermitian and normal operators (spectral measures, functional calculus, etc.) (47B15) Perturbation theory of linear operators (47A55)

Related Items

A Canonical Trace Class Approximant, Computing a nearest symmetric positive semidefinite matrix, Best approximation of a nonnormal operator in the trace norm, Normal spectral approximation in \(C^*\)-algebras and in von Neumann-algebras, Approximating the shift with Toeplitz operators, Approximation with restricted spectra, Approximation by positive operators, Approximation by Operators with Fixed Nullity, Remark on the positive contracting approximation, Positive near-approximants and some problems of Halmos

Cites Work

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• The Spectral Theorem for a Normal Operator
• The Norm Continuity Properties of Square Roots
• Monotone and Convex Operator Functions