On the singular spectrum of the Friedrichs model operators in a neighborhood of a singular point

DOI10.1007/BF02463348zbMath1017.47502OpenAlexW2049515337MaRDI QIDQ1289338

S. I. Yakovlev

Publication date: 7 August 2003

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

Full work available at URL: https://doi.org/10.1007/bf02463348

zbMATH Keywords

selfadjoint operatorsDini conditionsingular spectra

Mathematics Subject Classification ID

Linear operators belonging to operator ideals (nuclear, (p)-summing, in the Schatten-von Neumann classes, etc.) (47B10) Spectrum, resolvent (47A10) Perturbation theory of linear operators (47A55) Linear symmetric and selfadjoint operators (unbounded) (47B25)

Related Items (2)

Singular spectrum near a singular point of Friedrichs model operators of absolute type ⋮ Uniqueness theorem and singular spectrum in the Friedrichs model near a singular point

Cites Work

• Uniqueness theorems for operator-valued functions with positive imaginary part, and the singular spectrum in the selfadjoint Friedrichs model

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