1. On integrability and quasi-periodic wave solutions to a (3+1)-dimensional generalized KdV-like model equation
- Author
-
Mei-Juan Xua, Shou-Fu Tian, Tian-Tian Zhang, and Xiu-Bin Wang
- Subjects
Conservation law ,Integrable system ,Applied Mathematics ,Mathematical analysis ,One-dimensional space ,Bilinear interpolation ,Theta function ,01 natural sciences ,010305 fluids & plasmas ,Bell polynomials ,Computational Mathematics ,Riemann hypothesis ,symbols.namesake ,Nonlinear Sciences::Exactly Solvable and Integrable Systems ,0103 physical sciences ,symbols ,010306 general physics ,Korteweg–de Vries equation ,Mathematics - Abstract
Under investigation in this paper is the integrability of a (3+1)-dimensional generalized KdV-like model equation, which can be reduced to several integrable equations. With help of Bell polynomials, an effective method is presented to succinctly derive the bilinear formalism of the equation, based on which, the soliton solutions and periodic wave solutions are also constructed by using Riemann theta function. Furthermore, the Backlund transformation, Lax pairs, and infinite conservation laws of the equation can easily be derived, respectively. Finally, the relationship between periodic wave solutions and soliton solutions are systematically established. It is straightforward to verify that these periodic waves tend to soliton solutions under a small amplitude limit.
- Published
- 2016