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MATHEMATICS
A criterion for the discreteness of the spectrum of a selfadjoint system of differential equations of the first order with slowly varying coefficients
R. S. Ismagilov, V. V. Martynov Moscow Institute of Physics and Technology
Citation:
R. S. Ismagilov, V. V. Martynov, “A criterion for the discreteness of the spectrum of a selfadjoint system of differential equations of the first order with slowly varying coefficients”, Dokl. Akad. Nauk SSSR, 167:6 (1966), 1223–1225
Linking options:
https://www.mathnet.ru/eng/dan32230 https://www.mathnet.ru/eng/dan/v167/i6/p1223
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