English

${\mathbb{Z}}_N$ graded discrete Lax pairs and Yang-Baxter maps

Exactly Solvable and Integrable Systems 2015-10-20 v1 Mathematical Physics math.MP

Abstract

We recently introduced a class of ZN{\mathbb{Z}}_N graded discrete Lax pairs and studied the associated discrete integrable systems (lattice equations). In this paper we introduce the corresponding Yang-Baxter maps. Many well known examples belong to this scheme for N=2N=2, so, for N3N\geq 3, our systems may be regarded as generalisations of these. In particular, for each NN we introduce a generalisation of the map HIIIBH_{III}^B in the classification of scalar Yang-Baxter maps. For N=3N=3 this is equivalent to the Yang-Baxter map associated with the discrete modified Boussinesq equation. For N5N\geq 5 (and odd) we introduce a new family of Yang-Baxter maps, which have no lower dimensional analogue. We also present multi-component versions of the Yang-Baxter maps FIVF_{IV} and FVF_V (given in the ABS classification).

Keywords

Cite

@article{arxiv.1510.05590,
  title  = {${\mathbb{Z}}_N$ graded discrete Lax pairs and Yang-Baxter maps},
  author = {Allan P. Fordy and Pavlos Xenitidis},
  journal= {arXiv preprint arXiv:1510.05590},
  year   = {2015}
}

Comments

12 pages, 1 figure