Pekcan A

Publications in Math-Net.Ru

1. The Klein–Gordon Equation and Differential Substitutions of the Form $v=\varphi(u,u_x,u_y)$
   
   SIGMA, 8 (2012), 090, 37 pp.
2. Characteristic Lie algebra and classification of semidiscrete models
   
   TMF, 151:3 (2007),  413–423