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Publication:3788564
zbMath0645.47018MaRDI QIDQ3788564
Publication date: 1987
Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.
trace normunique best approximation among the non-negative operatorsunique trace class positive approximant
Linear operators belonging to operator ideals (nuclear, (p)-summing, in the Schatten-von Neumann classes, etc.) (47B10) Hermitian and normal operators (spectral measures, functional calculus, etc.) (47B15) Approximation by positive operators (41A36)
Related Items (4)
Contracting positive approximation in trace norm ⋮ Best approximation of a nonnormal operator in the trace norm ⋮ Approximation by positive operators ⋮ Remark on the positive contracting approximation
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