摘要
We propose and develop another approach to constructing multi-soliton solutions of an integrable two-component Camassa–Holm(CH2)system.With the help of a reciprocal transformation and a gauge transformation,we relate the CH2 system to a negative flow of the Broer–Kaup or twoboson hierarchy.The solutions of this negative flow are given in terms of Wronskians via Darboux transformation.Then the multi-soliton solutions of the CH2 system are recovered in parametric form by inverting the reciprocal transformation and the gauge transformation.
基金
supported in part by the National Natural Science Foundation of China(Grant Nos.11871471,11931017,11505064 and 11805071)
Natural Science Foundation of Fujian Province,China(Grant No.2016J05008)
the Yue Qi Outstanding Scholar Project,China University of Mining and Technology,Beijing(Grant No.00-800015Z1177)
the Fundamental Research Funds for the Central Universities.
