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Found 317 Documents (Results 1–100)

Lie group geometry. Invariant metrics and dynamical systems, dual algebra, and their applications in the group analysis of a one-dimensional kinetic equation. (English. Russian original) Zbl 07805988

Theor. Math. Phys. 217, No. 1, 1528-1540 (2023); translation from Teor. Mat. Fiz. 217, No. 1, 127-141 (2023).
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Conformal invariance and phenomenology of particle creation: Weyl geometry vs. Riemannian geometry. (English. Russian original) Zbl 1521.83054

Theor. Math. Phys. 216, No. 3, 1287-1298 (2023); translation from Teor. Mat. Fiz. 216, No. 3, 445-459 (2023).
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On a class of quadratic conservation laws for Newton equations in Euclidean space. (English. Russian original) Zbl 1521.37075

Theor. Math. Phys. 216, No. 2, 1209-1237 (2023); translation from Teor. Mat. Fiz. 216, No. 2, 350-382 (2023).
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Quantum Coulomb problem in a Gaussian time-dependent electric field within the path integral formalism. (English. Russian original) Zbl 1523.81118

Theor. Math. Phys. 215, No. 1, 551-559 (2023); translation from Teor. Mat. Fiz. 215, No. 1, 111-120 (2023).
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Hamiltonian dynamics of a spaceship in Alcubierre and Gödel metrics: recursion operators and underlying master symmetries. (English. Russian original) Zbl 1516.37066

Theor. Math. Phys. 212, No. 1, 1001-1018 (2022); translation from Teor. Mat. Fiz. 212, No. 1, 129-148 (2022).
MSC:  37J39 37J06
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On the Kadomtsev-Petviashvili hierarchy in an extended class of formal pseudo-differential operators. (English. Russian original) Zbl 1471.35351

Theor. Math. Phys. 207, No. 3, 799-826 (2021); translation from Teor. Mat. Fiz. 207, No. 3, 458-488 (2021).
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Darboux transformations for the strict KP hierarchy. (English. Russian original) Zbl 1477.37079

Theor. Math. Phys. 206, No. 3, 296-314 (2021); translation from Teor. Mat. Fiz. 206, No. 3, 339-360 (2021).
MSC:  37K35 37K10 37K25
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Hurwitz numbers from Feynman diagrams. (English. Russian original) Zbl 1453.81052

Theor. Math. Phys. 204, No. 3, 1166-1194 (2020); translation from Teor. Mat. Fiz. 204, No. 3, 396-429 (2020).
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Adiabatic limit in Ginzburg-Landau and Seiberg-Witten equations. (English. Russian original) Zbl 1452.35199

Theor. Math. Phys. 203, No. 1, 561-568 (2020); translation from Teor. Mat. Fiz. 203, No. 1, 151-160 (2020).
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Gravitational frequency shift of light signals in a pulsating dark matter halo. (English. Russian original) Zbl 1442.83015

Theor. Math. Phys. 201, No. 3, 1793-1797 (2019); translation from Teor. Mat. Fiz. 201, No. 3, 440-445 (2019).
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Proper conformal Killing vectors in static plane symmetric space-times. (English. Russian original) Zbl 1380.53083

Theor. Math. Phys. 191, No. 1, 620-629 (2017); translation from Teor. Mat. Fiz. 191, No. 1, 172-182 (2017).
MSC:  53C50 83C99
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Improved image method for a holographic description of conical defects. (English. Russian original) Zbl 1361.81106

Theor. Math. Phys. 189, No. 2, 1660-1672 (2016); translation from Teor. Mat. Fiz. 189, No. 2, 296-311 (2016).
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Using the concept of natural geometry in the nonlinear electrodynamics of the vacuum. (English. Russian original) Zbl 1282.78013

Theor. Math. Phys. 172, No. 3, 1321-1327 (2012); translation from Teor. Mat. Fiz. 172, No. 3, 505-512 (2012).
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An integral relation for tensor polynomials. (English. Russian original) Zbl 1300.15008

Theor. Math. Phys. 166, No. 2, 186-193 (2011); translation from Teor. Mat. Fiz. 166, No. 2, 216-224 (2011).
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Lax pairs for equations describing compatible nonlocal Poisson brackets of hydrodynamic type and integrable reductions of the Lamé equations. (English) Zbl 1178.37084

Theor. Math. Phys. 138, No. 2, 238-249 (2004); translation from Teor. Mat. Fiz. 138, No. 2, 283-296 (2004).
MSC:  37K10 37K05 37K25
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Quasi-Frobenius algebras and their integrable \(N\)-parameter deformations generated by compatible \(N\times N\) metrics of constant Riemannian curvature. (English) Zbl 1178.53091

Theor. Math. Phys. 136, No. 1, 908-916 (2003); translation from Teor. Mat. Fiz. 136, No. 1, 20-29 (2003).
MSC:  53D45 37K10 37K25
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Kinematics of the three moving space curves associated with the nonlinear Schrödinger equation. (English. Russian original) Zbl 1068.37055

Theor. Math. Phys. 133, No. 3, 1609-1618 (2002); translation from Teor. Mat. Fiz. 133, No. 3, 341-352 (2002).
MSC:  37K25 35Q55 53A04
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Geometric-dynamic approach to billiard systems. II: Geometric features of involutions. (English. Russian original) Zbl 1029.37040

Theor. Math. Phys. 129, No. 1, 1408-1420 (2001); translation from Teor. Mat. Fiz. 129, No. 1, 116-130 (2001).
MSC:  37J99 37D50 53A20 70G45 70H99
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A Kähler structure of the triplectic geometry. (English. Russian original) Zbl 1036.53051

Theor. Math. Phys. 124, No. 3, 1157-1171 (2000); translation from Teor. Mat. Fiz. 124, No. 3, 355-372 (2000).
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Geodesic equivalence of metrics as a particular case of integrability of geodesic flows. (English. Russian original) Zbl 0996.53054

Theor. Math. Phys. 123, No. 2, 651-658 (2000); translation from Teor. Mat. Fiz. 123, No. 2, 285-293 (2000).
MSC:  53D25 37J35 53C22
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Bäcklund transformations for hyperbolic surfaces in \(E^3\) via Weingarten congruences. (English. Russian original) Zbl 0965.53006

Theor. Math. Phys. 122, No. 1, 84-97 (2000); translation from Teor. Mat. Fiz. 122, No. 1, 102-117 (2000).
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Integration of \(D\)-dimensional cosmological models with two factor spaces by reduction to the generalized Emden-Fowler equation. (English. Russian original) Zbl 0954.83017

Theor. Math. Phys. 114, No. 3, 355-367 (1998); translation from Teor. Mat. Fiz. 114, No. 3, 454-469 (1998).
MSC:  83E15 53Z05 83F05
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Reduction of self-dual Yang-Mills equations with respect to subgroups of the extended Poincaré group. (English. Russian original) Zbl 0911.53051

Theor. Math. Phys. 110, No. 3, 329-342 (1997); translation from Teor. Mat. Fiz. 110, No. 3, 416-432 (1997).
MSC:  53Z05 81T13 35Q40
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Free equations for massive matter fields in \((2+1)\)-dimensional anti-de Sitter space from a deformed oscillator algebra. (English. Russian original) Zbl 0911.53053

Theor. Math. Phys. 110, No. 3, 295-304 (1997); translation from Teor. Mat. Fiz. 110, No. 3, 372-384 (1997).
MSC:  53Z05 83C10 83C47
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One-loop divergences in theories with an arbitrary nonminimal operator in curved space. (English. Russian original) Zbl 0918.53032

Theor. Math. Phys. 110, No. 3, 277-294 (1997); translation from Teor. Mat. Fiz. 110, No. 3, 351-371 (1997).
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Superalgebra of conformal deformations for twistor-like superspaces. (English. Russian original) Zbl 0913.53028

Theor. Math. Phys. 110, No. 1, 91-96 (1997); translation from Teor. Mat. Fiz. 110, No. 1, 114-121 (1997).
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