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Eurasian Mathematical Journal, 2013, Volume 4, Number 3, Pages 53–62
(Mi emj132)
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This article is cited in 11 scientific papers (total in 11 papers)
On spectral properties of a periodic problem with an integral perturbation of the boundary condition
N. S. Imanbaeva, M. A. Sadybekovb a International Kazakh-Turkish University named after A. Yasawi, Sattarhanov street, 161200 Turkestan, Kazahstan
b Institute of Mathematics and Mathematical Modeling, Pushkin street, 125, 050010 Almaty, Kazakhstan
Abstract:
In this paper we consider the spectral problem for the Schrödinger equation with an integral perturbation in the periodic boundary conditions. The unperturbed problem is assumed to have the system of eigenfunctions and associated functions forming a Riesz basis in L2(0,1). We construct the characteristic determinant of the spectral problem. We show that the basis property of the system of root functions of the problem may fail to be satisfied under an arbitrarily small change in the kernel of the integral perturbation.
Keywords and phrases:
eigenvalues, eigenfunctions, boundary value problem, Riesz basis, ordinary differential operator, characteristic determinant.
Received: 13.10.2010 Revised: 14.02.2013
Citation:
N. S. Imanbaev, M. A. Sadybekov, “On spectral properties of a periodic problem with an integral perturbation of the boundary condition”, Eurasian Math. J., 4:3 (2013), 53–62
Linking options:
https://www.mathnet.ru/eng/emj132 https://www.mathnet.ru/eng/emj/v4/i3/p53
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Abstract page: | 528 | Full-text PDF : | 194 | References: | 79 |
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