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This article is cited in 1 scientific paper (total in 1 paper)
Mathematics
Spectrum of the Schrödinger operator in an elliptical ring cover
M. A. Nikulin Lomonosov Moscow State University, Faculty of Mechanics and Mathematics
Abstract:
The stationary Schrödinger equation is studied in a domain bounded by two confocal ellipses and in its coverings. The order of dependence of the Laplace operator eigenvalues on sufficiently small distance between the foci is obtained. Coefficients of the power series expansion of said eigenvalues are calculated up to and including the square of half the focal distance.
Key words:
Mathieu funtions, stationary Schrödinger equation, Laplace operator spectrum, eigenvalue dependence on focal distance.
Received: 18.01.2023
Citation:
M. A. Nikulin, “Spectrum of the Schrödinger operator in an elliptical ring cover”, Vestnik Moskov. Univ. Ser. 1. Mat. Mekh., 2023, no. 5, 22–32; Moscow University Mathematics Bulletin, 78:5 (2023), 230–243
Linking options:
https://www.mathnet.ru/eng/vmumm4564 https://www.mathnet.ru/eng/vmumm/y2023/i5/p22
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Abstract page: | 79 | Full-text PDF : | 47 | References: | 18 |
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