Auto-Bäcklund transformation and new exact solutions of the (3+1)-dimensional KP equation with variable coefficients
محورهای موضوعی : Journal of Theoretical and Applied PhysicsJian-Guo Liu 1 , Zhifang Zeng 2
1 - College of Computer, Jiangxi University of Traditional Chinese Medicine
2 - College of Science, Nanchang University
کلید واژه: Symbolic computation, expansion method, Plasmas, Auto, Bäcklund transformation, Two, solitary waves, 05.45.Yv, 02.70.Wz, 52.35.Mw, 52.35.Fp,
چکیده مقاله :
AbstractThe (3+1)-dimensional variable coefficient Kadomtsev-Petviashvilli equation describes the dynamics of solitons and nonlinear waves in plasmas and superfluids. Based on computerized symbolic computation and extended variable coefficient homogeneous balance method, several families of exact soliton-like solutions, rational solutions, and auto-Bäcklund transformation are presented. With the use of the auto-BT and the ε-expansion method, we can obtain a soliton-like solution including N-solitary wave of the (3+1)-dimensional Kadomtsev-Petviashvilli equation with variable coefficients. Especially, we get a soliton-like solution including two-solitary waves as an illustrative example in detail.
