scientific article; zbMATH DE number 6321585
zbMath1299.47029MaRDI QIDQ5171291
Igor Cialenco, Dumitru Bolcu, Marius-Marinel Stanescu, Ion Ciucă
Publication date: 26 July 2014
Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.
perturbation theoryspectral theorynonselfadjoint operatorsfiniteness of the point spectrumdifferential and integro-differential operators
Spectrum, resolvent (47A10) Perturbation theory of linear operators (47A55) Eigenvalue problems for linear operators (47A75) General theory of ordinary differential operators (47E05) Eigenfunctions, eigenfunction expansions, completeness of eigenfunctions of ordinary differential operators (34L10) Integro-differential operators (47G20) Eigenvalues, estimation of eigenvalues, upper and lower bounds of ordinary differential operators (34L15)
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