Method for searching higher symmetries for quad graph equations
Exactly Solvable and Integrable Systems
2015-05-27 v1
Abstract
Generalized symmetry integrability test for discrete equations on the square lattice is studied. Integrability conditions are discussed. A method for searching higher symmetries (including non-autonomous ones) for quad graph equations is suggested based on characteristic vector fields.
Cite
@article{arxiv.1104.0493,
title = {Method for searching higher symmetries for quad graph equations},
author = {Rustem N. Garifullin and Elena V. Gudkova and Ismagil T. Habibullin},
journal= {arXiv preprint arXiv:1104.0493},
year = {2015}
}
Comments
16 pages, submitted to JPA