Infinitely many conservation laws for the discrete KdV equation
Infinitely many conservation laws for the discrete KdV equation
In [27] Rasin and Hydon suggested a way to construct an infinite number of conservation laws for the discrete KdV equation (dKdV), by repeated application of a certain symmetry to a known conservation law.It was not decided, however, whether the resulting conservation laws were distinct and nontrivial.In this paper we …