Abstract:
In this paper, we investigate the KdV equation with dual-power law nonlinearity. As a result, we have obtained general exact travelling wave soliton solutions such as bright soliton solution, dark soliton solution and periodic solution. These solutions have many free parameters in such away that they may be used to simulate many experimental situations. The main contribution in this work is to give the general solution of the obtained equations with different values of parameters $n$.
Key words:the KdV equation, dual-power law nonlinearity, exact soliton solutions, bright soliton, dark soliton, anti-kink soliton.