scientific article

zbMATH Open0581.47014MaRDI QIDQ3702824

Yingman Zhang

Publication date: 1985

Title of this publication is not available (Why is that?)

zbMATH Keywords

essential spectrumalmost normal operatorsfinite rank self-commutatorestimation of the quasitriangle norm of a linear operator on Hilbert spacesHelton-Howe measurenull set with respect to Lebesgue measure

Mathematics Subject Classification ID

Norms (inequalities, more than one norm, etc.) of linear operators (47A30) Spectrum, resolvent (47A10) Subnormal operators, hyponormal operators, etc. (47B20)

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