Distribution of eigenvalues of operators which are nearly self-adjoint

DOI10.1007/BF01082384zbMath0481.47002OpenAlexW2053941766MaRDI QIDQ1161892

Vladimir A. Mikhailets

Publication date: 1981

Published in: Functional Analysis and its Applications (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1007/bf01082384

zbMATH Keywords

numerical rangesectorial operatordistribution of discrete spectra

Mathematics Subject Classification ID

Spectrum, resolvent (47A10) Numerical range, numerical radius (47A12)

Related Items

Cosine Families of Unbounded Operators

Cites Work

• Expansion in the characteristic functions of the momentless problem in the case of axially symmetric oscillations of a thin shell
• Wave equation scattering in even-dimensional spaces
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