“…To date, extensive research has been carried out on the complex nonlinear waves of KdV equations. Many methods have been developed to solve these equations, such as inverse scattering transformation [1], Darboux-Bäcklund transformation [2,3], Hirota's bilinear method [4,5], the first integral method [6], the homogeneous balance principle [7,8], the F-expansion method [9][10][11], the Wronskian method [12], the variational method [13], and Painlevé analysis [14]. On the other hand, KdV equations have different forms in different models, and the relevant methods were developed to study different types of KdV equations.…”