The extended F-expansion method and its application for solving the nonlinear wave, CKGZ, GDS, DS and GZ equations

By using a simple transformation technique, we have shown that the nonlinear wave equation, the coupled Klein-Gordon-Zakharov (CKGZ) equations, the generalized Davey-Stewartson (GDS) equations, the Davey-Stewartson (DS) equations, the generalized Zakharov (GZ) equations can be reduced to the elliptic-like equation. Then, the extended F-expansion method is used to obtain a series of solutions including the single and the combined nondegenerative Jacobi elliptic function solutions and their degenerative solutions to the above mentioned class of NLPDEs.