Integrable lattice equations with vertex and bond variables

2011/05/31 by Jarmo Hietarinta, Claude Viallet · 1 citation
Physics and Astronomy · Mathematics · #nlin.SI #math.DS

paper · pdf · doi:10.1088/1751-8113/44/38/385201

15 pages, remarks added, other minor changes

arxiv created 2011/08/01 · arxiv updated 2015/05/28

Abstract

We present integrable lattice equations on a two dimensional square lattice with coupled vertex and bond variables. In some of the models the vertex dynamics is independent of the evolution of the bond variables, and one can write the equations as non-autonomous "Yang-Baxter maps". We also present a model in which the vertex and bond variables are fully coupled. Integrability is tested with algebraic entropy as well as multidimensional consistency

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• Noncommutative NLS systems: Darboux--Bäcklund transformations and integrable discretisations

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