SINGULARLY FINITE RANK NONSYMMETRIC PERTURBATIONS ${\mathcal H}_{-2}$-CLASS OF A SELF-ADJOINT OPERATOR

DOI10.31861/BMJ2021.01.11zbMath1481.47014OpenAlexW3199658247MaRDI QIDQ5153062

O. Yu. Dyuzhenkova, Mykola Dudkin

Publication date: 28 September 2021

Published in: Bukovinian Mathematical Journal (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.31861/bmj2021.01.11

zbMATH Keywords

singular perturbationsscale of Hilbert spacesnon-symmetric perturbation

Mathematics Subject Classification ID

Spectrum, resolvent (47A10) Perturbation theory of linear operators (47A55)

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