Applications of He’s variational principle method and modification of truncated expansion method to the coupled Klein

(in lingua inglese)

We established variational formulations for the coupled nonlinear Klein–Gordon zakharov equations by He’s semi-inverse method. It is obvious that the employed approach is useful and manageable and remarkably simple to find various kinds of solitary solutions. Also the modification of truncated expansion method was used to conduct an analytic study on the coupled nonlinear Klein–Gordon Zakhaeov equations. Moreover, the methods are capable of greatly minimizing the size of computational work compared to other existing techniques.