Tanh-peakon and hyperbolicon of a nonlinear-strength shallow water wave equation

作者:Tian Lixin*; Fu Min
来源:Chaos Solitons & Fractals, 2007, 32(2): 538-546.
DOI:10.1016/j.chaos.2005.11.004

摘要

This paper introduces a new shallow water wave equation with nonlinear strength. By using peakon bifurcation equation, we show that as the nonlinear-strength parameter varies, this nonlinear-strength equation has many interesting new solutions, which are called tanh-peakon and hyperbolicon because they can be expressed as tanh and hyperbolic functions. Exact expression of these new solution are detailed derived.