On completeness of weak eigenfunctions for multi-interval Sturm-Liouville equations with boundary-interface conditions

DOI10.1515/DEMA-2022-0210OpenAlexW4360777158MaRDI QIDQ2697200

Hayati Olğar

Publication date: 18 April 2023

Published in: Demonstratio Mathematica (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1515/dema-2022-0210

zbMATH Keywords

completenessmulti-interval Sturm-Liouville problemsweak eigenfunctionsboundary and interface conditions

Mathematics Subject Classification ID

Sturm-Liouville theory (34B24) Eigenfunctions, eigenfunction expansions, completeness of eigenfunctions of ordinary differential operators (34L10) Parameter dependent boundary value problems for ordinary differential equations (34B08) Eigenvalues, estimation of eigenvalues, upper and lower bounds of ordinary differential operators (34L15)

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