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zbMath0487.47007MaRDI QIDQ3948177

Shanti Prasanna, Masatoshi Fujii

Publication date: 1981

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

zbMATH Keywords

numerical range transcendental radius centroid operator center of mass of an operator centraloid operator scalar approximant

Mathematics Subject Classification ID

Norms (inequalities, more than one norm, etc.) of linear operators (47A30) Hermitian and normal operators (spectral measures, functional calculus, etc.) (47B15) Spectrum, resolvent (47A10) Subnormal operators, hyponormal operators, etc. (47B20) Numerical range, numerical radius (47A12)

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