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Found 12,854 Documents (Results 101–200)

Linearizable and nonlinearizable solutions in the nonlinear eigenvalue problem arising in the theory of electrodynamic waveguides filled with a nonlinear medium. (English. Russian original) Zbl 07794027

J. Math. Sci., New York 275, No. 5, 556-571 (2023); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 176, 34-49 (2020).
MSC:  35P30 34L20 35Q61
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Analyticity and pseudo-analyticity in the small parameter method. (English. Russian original) Zbl 07786494

Comput. Math. Math. Phys. 63, No. 11, 1996-2004 (2023); translation from Zh. Vychisl. Mat. Mat. 63, No. 11, 1806-1814 (2023).
MSC:  34E05 34E10 34G20
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Asymptotics of the solution of an initial-boundary value problem for the one-dimensional Klein-Gordon equation on the half-line. (English. Russian original) Zbl 07761793

Math. Notes 114, No. 4, 608-618 (2023); translation from Mat. Zametki 114, No. 4, 602-614 (2023).
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Asymptotics in the spectral parameter for solutions of \(2 \times 2\) systems of ordinary differential equations. (English. Russian original) Zbl 07761784

Math. Notes 114, No. 4, 472-488 (2023); translation from Mat. Zametki 114, No. 4, 543-562 (2023).
MSC:  34B09 34A30 34E05
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Parasitic eigenvalues of spectral problems for the Laplacian with third-type boundary conditions. (English. Russian original) Zbl 07752258

Comput. Math. Math. Phys. 63, No. 7, 1237-1253 (2023); translation from Zh. Vychisl. Mat. Mat. Fiz. 63, No. 7, 1128-1144 (2023).
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On the method of Lyapunov functionals for a linear first-order Volterra integrodifferential equation with delay on the semiaxis. (English. Russian original) Zbl 1525.45010

Mosc. Univ. Math. Bull. 78, No. 3, 150-152 (2023); translation from Vestn. Mosk. Univ., Ser. I 78, No. 3, 62-64 (2023).
MSC:  45J05 45D05 45M05
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Zero-order asymptotics for the solution of one type of singularly perturbed linear-quadratic control problems in the critical case. (English. Russian original) Zbl 1522.49031

Proc. Steklov Inst. Math. 321, Suppl. 1, S154-S169 (2023); translation from Tr. Inst. Mat. Mekh. (Ekaterinburg) 29, No. 1, 127-142 (2023).
MSC:  49N10 93C70
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