Examples of Friedrichs model operators with a cluster point of eigenvalues

DOI10.1155/S0161171203202155zbMath1053.47014MaRDI QIDQ1864300

Serguei I. Iakovlev

Publication date: 17 March 2003

Published in: International Journal of Mathematics and Mathematical Sciences (Search for Journal in Brave)

Full work available at URL: https://eudml.org/doc/51105

zbMATH Keywords

rank 1 perturbationmodulus of continuityFriedrichs model operatorssingular spectrum finiteness condition

Mathematics Subject Classification ID

Riesz operators; eigenvalue distributions; approximation numbers, (s)-numbers, Kolmogorov numbers, entropy numbers, etc. of operators (47B06) Linear symmetric and selfadjoint operators (unbounded) (47B25)

Related Items (1)

Singular spectrum near a singular point of Friedrichs model operators of absolute type

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