Singular perturbations of self-adjoint operators

DOI10.1023/B:MPAG.0000007189.09453.fczbMath1051.47011OpenAlexW1977163779MaRDI QIDQ1424737

Vladimir A. Derkach, Hassi, Seppo, Hendrik S. V. de Snoo

Publication date: 15 March 2004

Published in: Mathematical Physics, Analysis and Geometry (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1023/b:mpag.0000007189.09453.fc

zbMATH Keywords

Weyl functionoperator modelgeneralized Nevanlinna functionboundary tripletextension theoryKreĭn's formulasingular finite rank perturbations

Mathematics Subject Classification ID

Particular ordinary differential operators (Dirac, one-dimensional Schrödinger, etc.) (34L40) Perturbation theory of linear operators (47A55) Linear symmetric and selfadjoint operators (unbounded) (47B25) Selfadjoint operator theory in quantum theory, including spectral analysis (81Q10) Perturbation theories for operators and differential equations in quantum theory (81Q15) Linear operators on spaces with an indefinite metric (47B50)

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