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Found 53 Documents (Results 1–53)

Blow-up of the solution to the equation for nonlinear beam vibrations with allowance for transverse deformation effects. (English. Russian original) Zbl 07786503

Comput. Math. Math. Phys. 63, No. 11, 2107-2122 (2023); translation from Zh. Vychisl. Mat. Mat. 63, No. 11, 1877-1893 (2023).
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Solution blow-up and global solvability of the Cauchy problem for the equation of moderately long longitudinal waves in a viscoelastic rod. (English. Russian original) Zbl 1525.35048

Comput. Math. Math. Phys. 63, No. 7, 1285-1299 (2023); translation from Zh. Vychisl. Mat. Mat. Fiz. 63, No. 7, 1177-1191 (2023).
MSC:  35B44 35L30 74K10
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On a method for solving a mixed boundary value problem for a parabolic equation using modified sinc-approximation operators. (English. Russian original) Zbl 07752260

Comput. Math. Math. Phys. 63, No. 7, 1264-1284 (2023); translation from Zh. Vychisl. Mat. Mat. Fiz. 63, No. 7, 1156-1176 (2023).
MSC:  65-XX 35-XX
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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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Sufficient solvability conditions for the problem of pursuit under an impulse action. (English. Russian original) Zbl 1526.49024

Comput. Math. Math. Phys. 63, No. 7, 1166-1175 (2023); translation from Zh. Vychisl. Mat. Mat. Fiz. 63, No. 7, 1073-1083 (2023).
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On singular points of linear differential-algebraic equations with perturbations in the form of integral operators. (English. Russian original) Zbl 1523.34010

Comput. Math. Math. Phys. 63, No. 6, 1028-1044 (2023); translation from Zh. Vychisl. Mat. Mat. Fiz. 63, No. 6, 962-978 (2023).
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Uniqueness of solutions to initial-boundary value problems for parabolic systems with dini-continuous coefficients in a semibounded domain on the plane. (English. Russian original) Zbl 1516.35004

Comput. Math. Math. Phys. 63, No. 4, 553-563 (2023); translation from Zh. Vychisl. Mat. Mat. Fiz. 63, No. 4, 584-595 (2023).
MSC:  35A02 35K51
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On the stability of parabolic differential and difference equations with a time-nonlocal condition. (English. Russian original) Zbl 07557365

Comput. Math. Math. Phys. 62, No. 6, 962-973 (2022); translation from Zh. Vychisl. Mat. Mat. Fiz. 62, No. 6, 994-1006 (2022).
MSC:  65-XX 35-XX
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On a nonlinear problem for a system of integro-differential equations of radiative transfer theory. (English. Russian original) Zbl 1493.45010

Comput. Math. Math. Phys. 62, No. 6, 933-944 (2022); translation from Zh. Vychisl. Mat. Mat. Fiz. 62, No. 6, 965-976 (2022).
MSC:  45K05 80A21
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Smooth solution of the second initial-boundary value problem for a model parabolic system in a semibounded nonsmooth domain on the plane. (English. Russian original) Zbl 1487.35145

Comput. Math. Math. Phys. 62, No. 3, 382-392 (2022); translation from Zh. Vychisl. Mat. Mat. Fiz. 62, No. 3, 391-402 (2022).
MSC:  35B65 35K51
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Determination of the attenuation coefficient for the nonstationary radiative transfer equation. (English. Russian original) Zbl 1481.35406

Comput. Math. Math. Phys. 61, No. 12, 2088-2101 (2021); translation from Zh. Vychisl. Mat. Mat. Fiz. 61, No. 12, 2095-2108 (2021).
MSC:  35R30 35R09
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Sufficient conditions for solvability of one class of Neumann-type problems for the polyharmonic equation. (English. Russian original) Zbl 1473.35188

Comput. Math. Math. Phys. 61, No. 8, 1276-1288 (2021); translation from Zh. Vychisl. Mat. Mat. Fiz. 61, No. 8, 1295-1308 (2021).
MSC:  35J40 31B30 35A01
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Corporate dynamics in chains of coupled logistic equations with delay. (English. Russian original) Zbl 1484.35361

Comput. Math. Math. Phys. 61, No. 7, 1063-1074 (2021); translation from Zh. Vychisl. Mat. Mat. Fiz. 61, No. 7, 1070-1081 (2021).
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Anomalies of acoustic wave propagation in two semi-infinite cylinders connected by a flattened ligament. (English. Russian original) Zbl 1465.76093

Comput. Math. Math. Phys. 61, No. 4, 646-663 (2021); translation from Zh. Vychisl. Mat. Mat. Fiz. 61, No. 4, 666-683 (2021).
MSC:  76Q05 76M45
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Inverse problem of determining the absorption coefficient in a degenerate parabolic equation in the class \(L_{\infty}\). (English. Russian original) Zbl 1462.35462

Comput. Math. Math. Phys. 61, No. 3, 388-402 (2021); translation from Zh. Vychisl. Mat. Mat. Fiz. 61, No. 3, 413-427 (2021).
MSC:  35R30 35K20 35K65
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On regularity of weak solutions to a generalized Voigt model of viscoelasticity. (English. Russian original) Zbl 1454.35043

Comput. Math. Math. Phys. 60, No. 11, 1872-1888 (2020); translation from Zh. Vychisl. Mat. Mat. Fiz. 60, No. 11, 1933-1949 (2020).
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Phaseless inverse problems for Schrödinger, Helmholtz, and Maxwell equations. (English. Russian original) Zbl 1450.81059

Comput. Math. Math. Phys. 60, No. 6, 1045-1062 (2020); translation from Zh. Vychisl. Mat. Mat. Fiz. 60, No. 6, 1074-1092 (2020).
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Estimates for exponential decay of solutions to one class of nonlinear systems of neutral type with periodic coefficients. (English. Russian original) Zbl 1469.34106

Comput. Math. Math. Phys. 60, No. 4, 601-609 (2020); translation from Zh. Vychisl. Mat. Mat. Fiz. 60, No. 4, 612-620 (2020).
MSC:  34K40 34K25 34K20
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Generalized solutions of the Galilean invariant thermodynamically compatible conservation laws constructed using Godunov’s ideas. (English. Russian original) Zbl 1451.80016

Comput. Math. Math. Phys. 60, No. 4, 558-567 (2020); translation from Zh. Vychisl. Mat. Mat. Fiz. 60, No. 4, 567-577 (2020).
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Superconvergent algorithms for the numerical solution of the Laplace equation in smooth axisymmetric domains. (English. Russian original) Zbl 1471.65206

Comput. Math. Math. Phys. 60, No. 4, 545-557 (2020); translation from Zh. Vychisl. Mat. Mat. Fiz. 60, No. 4, 553-566 (2020).
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Generalized spline interpolation of functions with large gradients in boundary layers. (English. Russian original) Zbl 1451.41002

Comput. Math. Math. Phys. 60, No. 3, 411-426 (2020); translation from Zh. Vychisl. Mat. Mat. Fiz. 60, No. 3, 413-428 (2020).
MSC:  41A15
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Computation of viscous flow between two arbitrarily moving cylinders of arbitrary cross section. (English. Russian original) Zbl 1425.76072

Comput. Math. Math. Phys. 59, No. 6, 1030-1048 (2019); translation from Zh. Vychisl. Mat. Mat. Fiz. 59, No. 6, 1063-1082 (2019).
MSC:  76D10 76M15
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Approximation of a function and its derivatives on the basis of cubic spline interpolation in the presence of a boundary layer. (English. Russian original) Zbl 1416.65053

Comput. Math. Math. Phys. 59, No. 3, 343-354 (2019); translation from Zh. Vychisl. Mat. Mat. Fiz. 59, No. 3, 367-379 (2019).
MSC:  65D07 41A15
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The Green function of the Dirichlet problem for the biharmonic equation in a ball. (English. Russian original) Zbl 1432.31005

Comput. Math. Math. Phys. 59, No. 1, 66-81 (2019); translation from Zh. Vychisl. Mat. Mat. Fiz. 59, No. 1, 71-86 (2019).
MSC:  31B30 35J08
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Dynamics of a delay logistic equation with slowly varying coefficients. (English. Russian original) Zbl 1421.34048

Comput. Math. Math. Phys. 58, No. 12, 1926-1936 (2018); translation from Zh. Vychisl. Mat. Mat. Fiz. 58, No. 12, 1999-2013 (2018).
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Various manifestations of wood anomalies in locally distorted quantum waveguides. (English. Russian original) Zbl 1421.78020

Comput. Math. Math. Phys. 58, No. 11, 1838-1855 (2018); translation from Zh. Vychisl. Mat. Mat. Fiz. 58, No. 11, 1911-1931 (2018).
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Theoretical and numerical analysis of an initial-boundary value problem for the radiative transfer equation with Fresnel matching conditions. (English. Russian original) Zbl 1397.78027

Comput. Math. Math. Phys. 58, No. 5, 735-749 (2018); translation from Zh. Vychisl. Mat. Mat. Fiz. 58, No. 5, 762-777 (2018).
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Recovery of a rapidly oscillating source in the heat equation from solution asymptotics. (English. Russian original) Zbl 1516.35490

Comput. Math. Math. Phys. 57, No. 12, 1908-1918 (2017); translation from Zh. Vychisl. Mat. Mat. Fiz. 57, No. 12, 1955-1965 (2017).
MSC:  35R30 35C20 35K20
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Rapidly oscillating solutions of a generalized Korteweg-de Vries equation. (English. Russian original) Zbl 1383.35190

Comput. Math. Math. Phys. 57, No. 11, 1778-1788 (2017); translation from Zh. Vychisl. Mat. Mat. Fiz. 57, No. 11, 1812-1823 (2017).
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Finding discontinuities in the coefficients of the linear nonstationary transport equations. (English. Russian original) Zbl 1516.35491

Comput. Math. Math. Phys. 57, No. 10, 1650-1665 (2017); translation from Zh. Vychisl. Mat. Mat. Fiz. 57, No. 10, 1676-1691 (2017).
MSC:  35R30 35Q49
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Open waveguides in a thin Dirichlet ladder. I: Asymptotic structure of the spectrum. (English. Russian original) Zbl 1367.81065

Comput. Math. Math. Phys. 57, No. 1, 156-174 (2017); translation from Zh. Vychisl. Mat. Mat. Fiz. 57, No. 1, 144-162 (2017).
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Stability of solutions to extremum problems for the nonlinear convection-diffusion-reaction equation with the Dirichlet condition. (English. Russian original) Zbl 1366.35082

Comput. Math. Math. Phys. 56, No. 12, 2011-2022 (2016); translation from Zh. Vychisl. Mat. Mat. Fiz. 56, No. 12, 2042-2053 (2016).
MSC:  35K57 35B34
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On conservative spatial discretizations of the barotropic quasi-gasdynamic system of equations with a potential body force. (English. Russian original) Zbl 1382.76198

Comput. Math. Math. Phys. 56, No. 2, 303-319 (2016); translation from Zh. Vychisl. Mat. Mat. Fiz. 56, No. 2, 301-317 (2016).
MSC:  76M20 65M06 76N15
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Eigenmodes of a thin elastic layer between periodic rigid profiles. (English. Russian original) Zbl 1336.74028

Comput. Math. Math. Phys. 55, No. 10, 1684-1697 (2015); translation from Zh. Vychisl. Mat. Mat. Fiz. 55, No. 10, 1713-1726 (2015).
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Iterative methods of stochastic approximation for solving non-regular nonlinear operator equations. (English. Russian original) Zbl 1331.65079

Comput. Math. Math. Phys. 55, No. 10, 1597-1605 (2015); translation from Zh. Vychisl. Mat. Mat. Fiz. 55, No. 10, 1637-1645 (2015).
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Inverse problem of determining the absorption coefficient in the multidimensional heat equation with unlimited minor coefficients. (English. Russian original) Zbl 1323.35208

Comput. Math. Math. Phys. 55, No. 7, 1164-1176 (2015); translation from Zh. Vychisl. Mat. Mat. Fiz. 55, No. 7, 1183-1195 (2015).
MSC:  35R30 35K05
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Phase space of the initial-boundary value problem for the Oskolkov system of nonzero order. (English. Russian original) Zbl 1322.35116

Comput. Math. Math. Phys. 55, No. 5, 823-828 (2015); translation from Zh. Vychisl. Mat. Mat. Fiz. 55, No. 5, 823-829 (2015).
MSC:  35Q35 76A10
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Asymptotic analysis of linear parabolic problems with singularities. (English. Russian original) Zbl 1332.35142

Comput. Math. Math. Phys. 55, No. 1, 71-84 (2015); translation from Zh. Vychisl. Mat. Mat. Fiz. 55, No. 1, 74-88 (2015).
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Inverse problem for a quasilinear system of partial differential equations with a nonlocal boundary condition. (English. Russian original) Zbl 1327.35436

Comput. Math. Math. Phys. 54, No. 10, 1513-1521 (2014); translation from Zh. Vychisl. Mat. Mat. Fiz. 54, No. 10, 1571-1579 (2014).
MSC:  35R30
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