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Found 3,520 Documents (Results 1–100)

On the bifurcation of thresholds of the essential spectrum with a spectral singularity. (English. Russian original) Zbl 07710219

Differ. Equ. 59, No. 2, 278-282 (2023); translation from Differ. Uravn. 59, No. 2, 270-274 (2023).
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The spectral properties of a two-term fourth-order operator with a spectral parameter in the boundary condition. (English. Russian original) Zbl 1521.34020

Sib. Math. J. 64, No. 3, 649-669 (2023); translation from Sib. Mat. Zh. 64, No. 3, 611-634 (2023).
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Iterated conditionals, trivalent logics, and conditional random quantities. (English) Zbl 07719288

Dupin de Saint-Cyr, Florence (ed.) et al., Scalable uncertainty management. 15th international conference, SUM 2022, Paris, France, October 17–19, 2022. Proceedings. Cham: Springer. Lect. Notes Comput. Sci. 13562, 47-63 (2022).
MSC:  68T27 68T37
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Optimization inverse spectral problem for a vector Sturm-Liouville operator. (English. English summary) Zbl 1518.34022

Differ. Equ. 58, No. 12, 1694-1699 (2022); translation from Differ. Uravn. 58, No. 12, 1707-1711 (2022).
MSC:  34A55 34B24 34L15
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On the nonclassical asymptotics of the eigenvalues of a boundary value problem for a second-order differential-operator equation. (English. English summary) Zbl 1516.34122

Differ. Equ. 58, No. 12, 1571-1578 (2022); translation from Differ. Uravn. 58, No. 12, 1587-1595 (2022).
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On expansions in the exact and asymptotic eigenfunctions of the one-dimensional Schrödinger operator. (English. Russian original) Zbl 1517.81051

Math. Notes 112, No. 5, 623-641 (2022); translation from Mat. Zametki 112, No. 5, 644-664 (2022).
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