Lie point symmetries of difference equations for the nonlinear sine-Gordon equation


Yıldırım Ö. , Caglak S.

PHYSICA SCRIPTA, vol.94, 2019 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 94
  • Publication Date: 2019
  • Doi Number: 10.1088/1402-4896/ab1180
  • Title of Journal : PHYSICA SCRIPTA

Abstract

A procedure for obtaining the Lie point symmetries of a difference scheme for a nonlinear sine-Gordan equation is presented. The invariant discretization of the first order of accuracy difference scheme for the equation is concerned. The symmetry transformations act both on the difference scheme and lattices, and leave the solution set of the difference scheme invariant.