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Found 184 Documents (Results 1–100)

Direct and inverse problems of spectral analysis for arbitrary-order differential operators with nonintegrable regular singularities. (English. Russian original) Zbl 07798858

J. Math. Sci., New York 278, No. 1, 194-205 (2024); translation from Sovrem. Mat., Fundam. Napravl. 67, No. 2, 408-421 (2021).
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On the construction of a variational principle for a certain class of differential-difference operator equations. (English. Russian original) Zbl 07798854

J. Math. Sci., New York 278, No. 1, 108-114 (2024); translation from Sovrem. Mat., Fundam. Napravl. 67, No. 2, 316-323 (2021).
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Dynamic inverse problem for the one-dimensional system with memory. (English. Russian original) Zbl 07798764

J. Math. Sci., New York 277, No. 4, 646-652 (2023); translation from Zap. Nauchn. Semin. POMI 493, 259-268 (2020).
MSC:  35R30 35L20 35R09
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Data characterization in dynamical inverse problem for the 1D wave equation with matrix potential. (English. Russian original) Zbl 07798752

J. Math. Sci., New York 277, No. 4, 506-522 (2023); translation from Zap. Nauchn. Semin. POMI 493, 48-72 (2020).
MSC:  35R30 35L52
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Temperature fields that do not cause stresses in an inhomogeneous axisymmetric hollow cylinder. (English. Ukrainian original) Zbl 07798234

J. Math. Sci., New York 274, No. 5, 761-775 (2023); translation from Mat. Metody Fiz.-Mekh. Polya 64, No. 1, 149-160 (2021).
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Fundamental solutions for a piecewise-homogeneous transversely isotropic elastic space. (English. Ukrainian original) Zbl 1512.74007

J. Math. Sci., New York 270, No. 1, 143-156 (2023); translation from Mat. Metody Fiz.-Mekh. Polya 63, No. 1, 122-132 (2020).
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Asymptotic approach in the dynamic problems of the theory of elasticity for bodies with thin elastic inclusions. (English. Ukrainian original) Zbl 1512.74008

J. Math. Sci., New York 270, No. 1, 87-106 (2023); translation from Mat. Metody Fiz.-Mekh. Polya 63, No. 1, 75-93 (2020).
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Inverse spectral problem for integro-differential Sturm-Liouville operators with discontinuity conditions. (English. Russian original) Zbl 1495.45010

J. Math. Sci., New York 263, No. 6, 741-772 (2022); translation from Sovrem. Mat., Fundam. Napravl. 64, No. 3, 427-458 (2018).
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Identifications for general degenerate problems of hyperbolic type in Hilbert spaces. (English. Russian original) Zbl 1491.35453

J. Math. Sci., New York 260, No. 4, 583-599 (2022); translation from Sovrem. Mat., Fundam. Napravl. 64, No. 1, 194-210 (2018).
MSC:  35R30 35L90
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Inverse linear problems for a certain class of degenerate fractional evolution equations. (English. Russian original) Zbl 1491.35455

J. Math. Sci., New York 260, No. 3, 371-386 (2022); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 167, 97-111 (2019).
MSC:  35R30 35R11 34K29
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Additive problem with \(k\) numbers of a special form. (English. Russian original) Zbl 1498.11205

J. Math. Sci., New York 260, No. 2, 163-174 (2022); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 166, 10-21 (2019).
MSC:  11P70 11B13
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Application of the A. N. Tikhonov regularization to restoring microstructural characteristics of hail clouds. (English. Russian original) Zbl 1473.86027

J. Math. Sci., New York 259, No. 3, 334-340 (2021); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 165, 73-79 (2019).
MSC:  86A22 86A10 86-08
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Determining of coefficients and the classical solvability of a nonlocal boundary-value problem for the Benney-Luke integro-differential equation with degenerate kernel. (English. Russian original) Zbl 1461.35246

J. Math. Sci., New York 254, No. 6, 793-807 (2021); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 156, 89-102 (2018).
MSC:  35R30 35L35 35R09
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Spectral analysis of the airborne vector gravimetry problem. (English. Russian original) Zbl 1456.86007

J. Math. Sci., New York 253, No. 6, 778-795 (2021); translation from Fundam. Prikl. Mat. 22, No. 2, 19-32 (2018).
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On the solvability of stochastic Helmholtz problem. (English. Russian original) Zbl 1467.34056

J. Math. Sci., New York 253, No. 2, 297-305 (2021); translation from Neliniĭni Kolyvannya 22, No. 3, 398-405 (2019).
MSC:  34F05 34A55
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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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Direct and inverse spectral problems in the theory of oscillations of elastic plates with additional point interactions. (English. Russian original) Zbl 1502.74049

J. Math. Sci., New York 252, No. 2, 147-155 (2021); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 152, 25-33 (2018).
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Inverse boundary-value problem for an integro-differential Boussinesq-type equation with degenerate kernel. (English. Russian original) Zbl 1450.35294

J. Math. Sci., New York 250, No. 5, 847-858 (2020); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 149, 129-140 (2018).
MSC:  35R30 35R09 35Q35
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Inverse problem of determining the absorption coefficient in a degenerate parabolic equation in the class of \(L_2\)-functions. (English. Russian original) Zbl 1448.35574

J. Math. Sci., New York 250, No. 2, 322-336 (2020); translation from Probl. Mat. Anal. 105, 121-133 (2020).
MSC:  35R30 35K20 35K65
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The inverse problem of magneto-electroencephalography is well-posed: it has a unique solution that is stable with respect to perturbations. (English. Russian original) Zbl 1448.35571

J. Math. Sci., New York 245, No. 2, 121-124 (2020); translation from Fundam. Prikl. Mat. 21, No. 4, 17-22 (2016).
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The one-dimensional inverse problem in photoacoustics. Numerical testing. (English. Russian original) Zbl 1439.35565

J. Math. Sci., New York 243, No. 5, 726-733 (2019); translation from Zap. Nauchn. Semin. POMI 471, 140-149 (2018).
MSC:  35R30 65M32 92C55
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Quasianalytic functional classes in Jordan domains of the complex plane. (English. Russian original) Zbl 1426.30023

J. Math. Sci., New York 241, No. 6, 701-717 (2019); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 142, 57-72 (2017).
MSC:  30D60 31A25
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Inverse problems for initial conditions of the mixed problem for the telegraph equation. (English. Russian original) Zbl 1423.35455

J. Math. Sci., New York 241, No. 5, 622-645 (2019); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 141, 111-133 (2017).
MSC:  35R30 35M10 35Q60
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Characteristic properties of scattering data for discontinuous Schrödinger equations. (English. Russian original) Zbl 1428.34132

J. Math. Sci., New York 241, No. 5, 605-613 (2019); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 141, 95-102 (2017).
MSC:  34L25 34L05 34A55
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Identification of nonseparated boundary conditions. (English. Russian original) Zbl 1431.34024

J. Math. Sci., New York 241, No. 5, 507-517 (2019); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 141, 3-12 (2017).
MSC:  34A55 34B09 47E05
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Contact problem for a rigid punch and an elastic half space as an inverse problem. (English. Ukrainian original) Zbl 1454.74128

J. Math. Sci., New York 240, No. 2, 184-193 (2019); translation from Mat. Metody Fiz.-Mekh. Polya 60, No. 1, 149-156 (2017).
MSC:  74M15 74M10 74G75
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Approximate controllability of the wave equation with mixed boundary conditions. (English. Ukrainian original) Zbl 1418.93034

J. Math. Sci., New York 239, No. 1, 75-85 (2019); translation from Ukr. Mat. Visn. 15, No. 2, 251-263 (2018).
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Model of a saccular aneurysm of the bifurcation node of an artery. (English. Russian original) Zbl 1421.35387

J. Math. Sci., New York 238, No. 5, 676-688 (2019); translation from Zap. Nauchn. Semin. POMI 461, 174-194 (2017).
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Modeling of a false aneurysm in an artery: equilibrium and development of a hematoma. (English. Russian original) Zbl 1421.35386

J. Math. Sci., New York 239, No. 3, 309-328 (2019); translation from Probl. Mat. Anal. 97, 67-82 (2019).
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On the ultrasolvability of some classes of minimal nonsplit \(p\)-extensions with cyclic kernel for \(p > 2\). (English. Russian original) Zbl 1415.12002

J. Math. Sci., New York 232, No. 5, 677-692 (2018); translation from Zap. Nauchn. Semin. POMI 452, 132-157 (2016).
MSC:  12F12 12F10
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Criteria of the uniqueness of solutions and well-posedness of inverse source problems. (English. Russian original) Zbl 1391.35292

J. Math. Sci., New York 230, No. 6, 907-949 (2018); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 133 (2017).
MSC:  35P05 35R30 47F05
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On approximation of coefficient inverse problems for differential equations in functional spaces. (English. Russian original) Zbl 1434.35280

J. Math. Sci., New York 230, No. 6, 823-906 (2018); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 133 (2017).
MSC:  35R30 65J22
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On recent advances in boundary-value problems in the plane. (English. Ukrainian original) Zbl 1387.30058

J. Math. Sci., New York 221, No. 5, 638-670 (2017); translation from Ukr. Mat. Visn. 13, No. 2, 167-212 (2016).
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Relationship between different types of inverse data for the one-dimensional Schrödinger operator on a half-line. (English. Russian original) Zbl 1380.81122

J. Math. Sci., New York 226, No. 6, 779-794 (2017); translation from Zap. Nauchn. Semin. POMI 451, 134-155 (2016).
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Boundary-value problems for the Lyapunov equation in Banach spaces. (English. Ukrainian original) Zbl 1372.34095

J. Math. Sci., New York 223, No. 3, 298-304 (2017); translation from Neliniĭni Kolyvannya 19, No. 2, 240-246 (2016).
MSC:  34G10 34B10
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Inverse problem for a weakly nonlinear ultraparabolic equation with three unknown functions of different arguments on the right-hand side. (English. Ukrainian original) Zbl 1354.35182

J. Math. Sci., New York 217, No. 4, 476-514 (2016); translation from Neliniĭni Kolyvannya 18, No. 2, 245-279 (2015).
MSC:  35R30 35K70
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Time-dependent correlation functions for the bimodal Bose-Hubbard model. (English. Russian original) Zbl 1353.81121

J. Math. Sci., New York 213, No. 5, 662-670 (2016); translation from Zap. Nauchn. Semin. POMI 433, 65-77 (2015).
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Thermoelastic strip-shaped plate motion control: optimal restoration of deflection from incomplete measurements with errors. (English. Russian original) Zbl 1342.74041

J. Math. Sci., New York 210, No. 2, 148-154 (2015); translation from Tr. Semin. Im. I. G. Petrovskogo 30, No. 1, 64-74 (2014).
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On an inverse boundary-value problem for a pseudoparabolic third-order equation with integral condition of the first kind. (English. Ukrainian original) Zbl 1327.35443

J. Math. Sci., New York 204, No. 3, 343-350 (2015); translation from Ukr. Mat. Visn. 11, No. 2, 240-249 (2014).
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Reduction of the Fredholm boundary-value problem to the critical case of the first order. (English. Ukrainian original) Zbl 1327.34027

J. Math. Sci., New York 208, No. 5, 607-619 (2015); translation from Neliniĭni Kolyvannya 17, No. 2, 281-292 (2014).
MSC:  34A55 34B15 34E10
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On a coefficient inverse problem for a parabolic equation in a domain with free boundary. (English. Ukrainian original) Zbl 1319.35304

J. Math. Sci., New York 200, No. 3, 374-388 (2014); translation from Ukr. Mat. Visn. 11, No. 1, 109-126 (2014).
MSC:  35R30 35K20
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On inverse optimal control problems of human locomotion: stability and robustness of the minimizers. (English. Russian original) Zbl 1282.93036

J. Math. Sci., New York 195, No. 3, 269-287 (2013); translation from Sovrem. Mat. Prilozh. 82 (2012).
MSC:  93A30 93B35 49N45 49K40 49N10 49N90
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On some constructive methods for the matrix Riemann-Hilbert boundary-value problem. (English. Russian original) Zbl 1288.34078

J. Math. Sci., New York 195, No. 2, 146-174 (2013); translation from Sovrem. Mat. Prilozh. 81 (2012).
MSC:  34M35 34M50
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On optimal recovery of solutions to difference equations from inaccurate data. (English. Russian original) Zbl 1278.65146

J. Math. Sci., New York 189, No. 4, 596-603 (2013); translation from Probl. Mat. Anal. 69, 47-54 (2013).
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Estimates for kernels of inverse operators of integral equations of elasticity on surfaces with conic points. (English. Russian original) Zbl 1381.45039

J. Math. Sci., New York 186, No. 2, 179-208 (2012); translation from Probl. Mat. Anal. 66, 39-65 (2012).
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Approximate global convergence and quasireversibility for a coefficient inverse problem with backscattering data. (English. Russian original) Zbl 1252.35282

J. Math. Sci., New York 181, No. 2, 126-163 (2012); translation from Probl. Mat. Anal. 62, 19-49 (2011).
MSC:  35R30 65M12
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An inverse problem for a parabolic equation in a free-boundary domain degenerating at the initial time moment. (English. Russian original) Zbl 1252.35280

J. Math. Sci., New York 181, No. 1, 47-64 (2012); translation from Ukr. Mat. Visn. 8, No. 3, 381-403 (2011).
MSC:  35R30 35R35 35A09
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