The canonical transformations of the dynamical multiparameter systems as   recurrence relations for the models on the grating
  The theory of recurrence relations of linear multi-component and multi-parameter systems on the basis of the canonical transformations theory of the dynamical systems' sets is constructed. The parameters of the grating's knots are defined from the condition of the invariance of the model under shifts along the grating. The connection with a zero curvature representation for models on the grating is installed. The examples of two- and three-parameter systems described by the hypergeometric functions M(\alpha,\beta,t) and M(\alpha,\beta,\xi,t) are considered in details. The canonical recurrence relations increasing and decreasing parameters {\alpha,\beta,\xi} for solutions of the corresponding equations are constructed. 
V.D. Gladush and A.V. Shcherbakov