a College of Sciences, Shanghai University, Shanghai 200444, PR China b School of Physics and Mathematics, Changzhou University, ChangZhou 213164, PR China
Abstract:
A hierarchy of the inverse KdV equation is discussed. Through the bilinear form of Lax pairs, we prove a generalized Darboux-Crum theorem of the hierarchy. The Bäcklund transformation and the generalized Wronskian solutions are presented. The soliton solutions, explicit rational solutions are obtained then.