Results 11 to 20 of about 159 (52)

Two-Dimensional Toda-Heisenberg Lattice [PDF]

open access: yes, 2013
We consider a nonlinear model that is a combination of the anisotropic two-dimensional classical Heisenberg and Toda-like lattices. In the framework of the Hirota direct approach, we present the field equations of this model as a bilinear system, which ...
Vekslerchik, Vadim E.
core   +2 more sources

Multiple solutions for a class of oscillatory discrete problems

open access: yesAdvances in Nonlinear Analysis, 2015
In this paper, we study a discrete nonlinear boundary value problem that involves a nonlinear term oscillating at infinity and a power-type nonlinearity up.
Mălin Maria
doaj   +1 more source

Symmetries of the Hirota Difference Equation [PDF]

open access: yes, 2017
Continuous symmetries of the Hirota difference equation, commuting with shifts of independent variables, are derived by means of the dressing procedure. Action of these symmetries on the dependent variables of the equation is presented.
Pogrebkov, Andrei K.
core   +1 more source

Linearizability of Nonlinear Equations on a Quad-Graph by a Point, Two Points and Generalized Hopf-Cole Transformations [PDF]

open access: yes, 2011
In this paper we propose some linearizability tests of partial difference equations on a quad-graph given by one point, two points and generalized Hopf-Cole transformations.
Levi, Decio, Scimiterna, Christian
core   +2 more sources

High order multiscale analysis of discrete integrable equations [PDF]

open access: yesOpen Communications in Nonlinear Mathematical Physics
In this article we present the results obtained applying the multiple scale expansion up to the order $\varepsilon^6$ to a dispersive multilinear class of equations on a square lattice depending on 13 parameters. We show that the integrability conditions
Rafael Hernandez Heredero   +2 more
doaj   +1 more source

Well-posedness and maximum principles for lattice reaction-diffusion equations

open access: yesAdvances in Nonlinear Analysis, 2017
Existence, uniqueness and continuous dependence results together with maximum principles represent key tools in the analysis of lattice reaction-diffusion equations.
Slavík Antonín   +2 more
doaj   +1 more source

Yang-Baxter Maps from the Discrete BKP Equation [PDF]

open access: yes, 2010
We construct rational and piecewise-linear Yang-Baxter maps for a general N-reduction of the discrete BKP ...
Kakei, Saburo   +2 more
core   +4 more sources

Multidimensional Toda Lattices: Continuous and Discrete Time [PDF]

open access: yes, 2016
In this paper we present multidimensional analogues of both the continuous- and discrete-time Toda lattices. The integrable systems that we consider here have two or more space coordinates.
Aptekarev, Alexander I.   +3 more
core   +1 more source

Differential Calculus on h-Deformed Spaces [PDF]

open access: yes, 2017
We construct the rings of generalized differential operators on the ${\bf h}$-deformed vector space of ${\bf gl}$-type. In contrast to the $q$-deformed vector space, where the ring of differential operators is unique up to an isomorphism, the general ...
Herlemont, Basile, Ogievetsky, Oleg
core   +4 more sources

Conservation laws of some lattice equations

open access: yes, 2012
We derive infinitely many conservation laws for some multi-dimensionally consistent lattice equations from their Lax pairs. These lattice equations are the Nijhoff-Quispel-Capel equation, lattice Boussinesq equation, lattice nonlinear Schr\"{o}dinger ...
Cheng, Jun-wei, Zhang, Da-jun
core   +1 more source

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