Conditions of spectrum localization for operators not close to self-adjoint operators

DOI10.1134/S1064562418020175zbMath1494.47036OpenAlexW2803196751MaRDI QIDQ721821

Kh. K. Ishkin

Publication date: 20 July 2018

Published in: Doklady Mathematics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1134/s1064562418020175

zbMATH Keywords

Sturm-Liouville operatoranharmonic oscillatornon-self-adjoint differential operatorsKeldysh theoremSchatten-von Neumann class resolventspectrum localisation

Mathematics Subject Classification ID

Spectrum, resolvent (47A10) General theory of ordinary differential operators (47E05) Eigenfunctions, eigenfunction expansions, completeness of eigenfunctions of ordinary differential operators (34L10) Nonselfadjoint operators (47B28)

Related Items (2)

Spectral asymptotics for fourth order differential operator with two turning points ⋮ Equivalence criterion for two asymptotic formulae

Cites Work

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