Indefinite Sturm-Liouville operators in polar form

DOI10.1007/S00020-023-02746-3arXiv2101.00104OpenAlexW3119098657WikidataQ129330913 ScholiaQ129330913MaRDI QIDQ6123371

Vladimir A. Derkach, Carsten Trunk, Branko Ćurgus

Publication date: 4 March 2024

Published in: Integral Equations and Operator Theory (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/2101.00104

zbMATH Keywords

Riesz basisKrein spaceWeyl functionsymmetric operatorself-adjoint extensionboundary tripleregular critical pointcoupling of operators

Mathematics Subject Classification ID

Sturm-Liouville theory (34B24) Linear symmetric and selfadjoint operators (unbounded) (47B25) Eigenfunctions, eigenfunction expansions, completeness of eigenfunctions of ordinary differential operators (34L10) Spaces with indefinite inner product (Kre?n spaces, Pontryagin spaces, etc.) (46C20) Linear operators on spaces with an indefinite metric (47B50)

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