scientific article; zbMATH DE number 2149389

zbMath1084.47010MaRDI QIDQ4661914

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

Publication date: 30 March 2005

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

zbMATH Keywords

indefinite metricWeyl functionoperator modelgeneralized Nevanlinna functionboundary tripletextension theoryKrein's formulasingular finite rank perturbation

Mathematics Subject Classification ID

Particular ordinary differential operators (Dirac, one-dimensional Schrödinger, etc.) (34L40) Applications of operator theory in the physical sciences (47N50) Spectrum, resolvent (47A10) 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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