Exact solutions for the nonlinear Schrödinger equation with variable coefficients using the generalized extended tanh-function, the sine–cosine and the exp-function methods

Autor: Zayed, E.M.E., Abdelaziz, M.A.M.
Zdroj: In Applied Mathematics and Computation 2011 218(5):2259-2268
Databáze: ScienceDirect