Constructing a basis from systems of eigenfunctions of one not strengthened regular boundary value problem

DOI10.2298/FIL1704981SzbMath1488.34477OpenAlexW2594860335MaRDI QIDQ5006799

Aizhan Tengayeva, Gulnara Dildabek, Makhmud A. Sadybekov

Publication date: 17 August 2021

Published in: Filomat (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.2298/fil1704981s

zbMATH Keywords

eigenfunctionsnonlocal boundary conditionsbasisregular but not strengthened regular conditions

Mathematics Subject Classification ID

General theory of ordinary differential operators (47E05) Eigenfunctions, eigenfunction expansions, completeness of eigenfunctions of ordinary differential operators (34L10) Nonlocal and multipoint boundary value problems for ordinary differential equations (34B10) Boundary eigenvalue problems for ordinary differential equations (34B09)

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• Spectral theory of two-point differential operators determined by \(-D^ 2\). II: Analysis of cases
• Properties of spectral expansions corresponding to non-self-adjoint differential operators.
• On the solvability of nonlocal boundary value problem for the Helmholtz equation with the equality of flows at the part of the boundary and its conjugated problem

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