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Found 14 Documents (Results 1–14)

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Relations between spheroidal harmonics and the Rayleigh approximation for multilayered nonconfocal spheroids. (English. Russian original) Zbl 1457.78009

J. Math. Sci., New York 252, No. 5, 702-730 (2021); translation from Zap. Nauchn. Semin. POMI 483, 199-242 (2019).
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Asymptotic behavior of solutions of the nonstationary Dirac euqation with potential that slowly depends on time. (English. Russian original) Zbl 1458.35362

J. Math. Sci., New York 252, No. 5, 695-701 (2021); translation from Zap. Nauchn. Semin. POMI 483, 189-198 (2019).
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Forward and inverse problems for a finite Krein-Stieltjes string. Approximation of constant density by point masses. (English. Russian original) Zbl 1456.35127

J. Math. Sci., New York 252, No. 5, 654-663 (2021); translation from Zap. Nauchn. Semin. POMI 483, 128-141 (2019).
MSC:  35L20 35L05
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A comment on eigenfunctions and eigenvalues of the Laplace operator in an angle with Robin boundary conditions. (English. Russian original) Zbl 1456.35145

J. Math. Sci., New York 252, No. 5, 646-653 (2021); translation from Zap. Nauchn. Semin. POMI 483, 116-127 (2019).
MSC:  35P05 35J25
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A nonstationary problem of diffraction of acoustic waves from a point source by an interface of two half-planes with positive effective curvature. (English. Russian original) Zbl 1456.76122

J. Math. Sci., New York 252, No. 5, 612-618 (2021); translation from Zap. Nauchn. Semin. POMI 483, 69-78 (2019).
MSC:  76Q05 76M40 86A05
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On an evolutionary dynamical system of the first order with boundary control. (English. Russian original) Zbl 1455.93089

J. Math. Sci., New York 252, No. 5, 592-601 (2021); translation from Zap. Nauchn. Semin. POMI 483, 41-54 (2019).
MSC:  93C25 93C15
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Simplest test for the three-dimensional dynamical inverse problem (the BC-Method). (English. Russian original) Zbl 1456.35228

J. Math. Sci., New York 252, No. 5, 576-591 (2021); translation from Zap. Nauchn. Semin. POMI 483, 19-40 (2019).
MSC:  35R30 35L20
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The scattering problem of three one-dimensional short-range quantum particles involving bound states in pair subsystems. The coordinate asymptotics of the resolvent kernel and of the eigenfunctions of the absolutely continuous spectrum. (English. Russian original) Zbl 1455.81044

J. Math. Sci., New York 252, No. 5, 567-575 (2021); translation from Zap. Nauchn. Semin. POMI 483, 5-18 (2019).
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