Abstract:
We study the problem of the integrable classification of nonlinear lattices depending on one discrete and two continuous variables. By integrability, we mean the presence of reductions of a chain to a system of hyperbolic equations of an arbitrarily high order that are integrable in the Darboux sense. Darboux integrability admits a remarkable algebraic interpretation: the Lie–Rinehart algebras related to both characteristic directions corresponding to the reduced system of hyperbolic equations must have a finite dimension. We discuss a classification algorithm based on the properties of the characteristic algebra and present some classification results. We find new examples of integrable equations.
Citation:
I. T. Habibullin, M. N. Kuznetsova, “A classification algorithm for integrable two-dimensional lattices
via Lie–Rinehart algebras”, TMF, 203:1 (2020), 161–173; Theoret. and Math. Phys., 203:1 (2020), 569–581
This publication is cited in the following 16 articles:
I.T. Habibullin, A.U. Sakieva, “On integrable reductions of two-dimensional Toda-type lattices”, Partial Differential Equations in Applied Mathematics, 11 (2024), 100854
A. R. Khakimova, “Darboux-integrable Reductions of the Hirota–Miwa Type Discrete Equations”, Lobachevskii J Math, 45:6 (2024), 2717
Ismagil T. Habibullin, Aigul R. Khakimova, “Higher Symmetries of Lattices in 3D”, Regul. Chaotic Dyn., 29:6 (2024), 853–865
Ufa Math. J., 16:4 (2024), 124–135
M. N. Kuznetsova, I. T. Habibullin, A. R. Khakimova, “On the problem of classifying integrable chains with three independent variables”, Theoret. and Math. Phys., 215:2 (2023), 667–690
M. N. Kuznetsova, “Construction of localized particular solutions of chains with three independent variables”, Theoret. and Math. Phys., 216:2 (2023), 1158–1167
I. T. Habibullin, A. R. Khakimova, “On the classification of nonlinear integrable three-dimensional chains via characteristic Lie algebras”, Theoret. and Math. Phys., 217:1 (2023), 1541–1573
S. V. Smirnov, “Integral preserving discretization of 2D Toda lattices”, J. Phys. A: Math. Theor., 56:26 (2023), 265204
I. T. Habibullin, A. R. Khakimova, “Integrals and characteristic algebras for systems of discrete equations on a quadrilateral graph”, Theoret. and Math. Phys., 213:2 (2022), 1589–1612
I. T. Habibullin, A. R. Khakimova, “Algebraic reductions of discrete equations of Hirota-Miwa type”, Ufa Math. J., 14:4 (2022), 113–126
D. V. Millionshchikov, S. V. Smirnov, “Characteristic algebras and integrable exponential systems”, Ufa Math. J., 13:2 (2021), 41–69
Maria N. Kuznetsova, “Lax Pair for a Novel Two-Dimensional Lattice”, SIGMA, 17 (2021), 088, 13 pp.
I. T. Habibullin, M. N. Kuznetsova, “An algebraic criterion of the Darboux integrability of differential-difference equations and systems”, J. Phys. A-Math. Theor., 54:50 (2021), 505201
I. T. Habibullin, A. R. Khakimova, “Characteristic Lie algebras of integrable differential-difference equations in 3D”, J. Phys. A-Math. Theor., 54:29 (2021), 295202
Habibullin I.T. Kuznetsova M.N. Sakieva A.U., “Integrability Conditions For Two-Dimensional Toda-Like Equations”, J. Phys. A-Math. Theor., 53:39 (2020), 395203
Ferapontov E.V. Habibullin I.T. Kuznetsova M.N. Novikov V.S., “On a Class of 2D Integrable Lattice Equations”, J. Math. Phys., 61:7 (2020), 073505