Journal of Siberian Federal University. Mathematics & Physics / Characteristic Determinant of a Perturbed Regular Third-order Differential Operator on an Interval

Full text (.pdf)
Issue
Journal of Siberian Federal University. Mathematics & Physics. 2025 18 (1)
Authors
Imanbaev, Nurlan S.
Contact information
Imanbaev, Nurlan S. : Zhanibekov South Kazakhstan Pedagogical University Shymkent, Kazakhstan Institute of Mathematics and Mathematical Modeling Almaty, Kazakhstan; OCRID: 0000-0002-5220-9899
Keywords
differential operator; integral perturbation; onjugate operator; loaded; igenvalues; eigenfunctions; characteristic determinant; entire function
Abstract

The spectral problem for a third-order operator with an integral perturbation of one of the boundary value conditions are considered in the paper. Conditions are regular and at the same time strongly regular. A feature of the problem is that the conjugate operator is a loaded third-order differ- ential operator with regular (strongly regular) boundary value conditions. Characteristic determinant of the spectral problem is constructed, and conclusions about eigenvalues of the perturbed operator are drawn

Pages
25–31
EDN
GMRCJR
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/154247