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Found 14 Documents (Results 1–14)

On the integrability of lattice equations with two continuum limits. (English. Russian original) Zbl 1456.37082

J. Math. Sci., New York 252, No. 2, 283-289 (2021); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 152, 159-164 (2018).
MSC:  37K60 39A36 39A12
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Symmetry-based approach to the problem of a perfect cuboid. (English. Russian original) Zbl 1483.11059

J. Math. Sci., New York 252, No. 2, 266-282 (2021); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 152, 143-158 (2018).
MSC:  11D09 11D41 11D72
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Asymptotic problem for second-order ordinary differential equation with nonlinearity corresponding to a butterfly catastrophe. (English. Russian original) Zbl 1461.34078

J. Math. Sci., New York 252, No. 2, 247-265 (2021); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 152, 125-142 (2018).
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On the almost sure stability of dynamical systems with respect to white noise. (English. Russian original) Zbl 1453.93240

J. Math. Sci., New York 252, No. 2, 242-246 (2021); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 152, 120-124 (2018).
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Symmetry drivers and formal integrals of hyperbolic systems. (English. Russian original) Zbl 1456.37068

J. Math. Sci., New York 252, No. 2, 232-241 (2021); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 152, 110-119 (2018).
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Some properties of extremals of the functional of potential energy. (English. Russian original) Zbl 1453.49018

J. Math. Sci., New York 252, No. 2, 225-231 (2021); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 152, 103-109 (2018).
MSC:  49Q10 53A07 31A15
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Generalized Jacobi matrices and spectral analysis of differential operators with polynomial coefficients. (English. Russian original) Zbl 1507.47100

J. Math. Sci., New York 252, No. 2, 213-224 (2021); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 152, 91-102 (2018).
MSC:  47E05 47B36 34L05
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Laplacians on smooth distributions as \(C^*\)-algebra multipliers. (English. Russian original) Zbl 1465.58011

J. Math. Sci., New York 252, No. 2, 190-212 (2021); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 152, 67-90 (2018).
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Emergence and decay of \(\pi \)-kinks in the sine-Gordon model with high-frequency pumping. (English. Russian original) Zbl 1458.35118

J. Math. Sci., New York 252, No. 2, 175-189 (2021); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 152, 53-66 (2018).
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On a certain class of hyperbolic equations with second-order integrals. (English. Russian original) Zbl 1457.35049

J. Math. Sci., New York 252, No. 2, 168-174 (2021); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 152, 46-52 (2018).
MSC:  35Q51 37K60
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Existence of weak solutions of the aggregation equation with the \(p ( \cdot )\)-Laplacian. (English. Russian original) Zbl 1453.35109

J. Math. Sci., New York 252, No. 2, 156-167 (2021); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 152, 34-45 (2018).
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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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Perturbations of the continuous spectrum of a certain nonlinear two-dimensional operator sheaf. (English. Russian original) Zbl 1507.47102

J. Math. Sci., New York 252, No. 2, 135-146 (2021); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 152, 13-24 (2018).
MSC:  47F05 35P05 47A55
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Eigenfunctions of ordinary differential Euler operators. (English. Russian original) Zbl 1507.47099

J. Math. Sci., New York 252, No. 2, 125-134 (2021); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 152, 3-12 (2018).
MSC:  47E05 34L10 34B30
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