“…Recently, many scholars such as Ni and Wei, [14] Bartier, [15] Llibre and de Silva [16] and Guarguaglini and Natalini [17] have carried out a great deal of work. Using the method of differential inequalities and others, researchers also considered a class of reaction diffusion problems, [18] activator inhibitor systems, [19] ecological environment, [20] shock wave, [21] soliton wave, [22,23] laser pulse, [24] ocean science, [25,26] atmospheric physics, [27β30] etc. In this Letter, we consider a class of generalized nonlinear KdV systems, and obtain approximate solution of solitary wave.…”