Mixed interactions of localized waves in the three-component coupled derivative nonlinear Schrödinger equations
The Darboux transformation of the three-component coupled derivative nonlinear Schrödinger equations is constructed. Based on the special vector solution generated from the corresponding Lax pair, various interactions of localized waves are derived. Here, we focus on the higher-order interactional solutions among higher-order rogue waves, multi-solitons, and multi-breathers. It is defined as the identical type of interactional solution that the same combination appears among these three components \(q_1, q_2\), and \(q_3\), without considering different arrangements among them. According to our method and definition, these interactional solutions are completely classified as six types, among which there are four mixed interactions of localized waves in these three different components. In particular, the free parameters \(\mu \) and \(\nu \) play the important roles in dynamics structures of the interactional solutions. For example, different nonlinear localized waves merge with each other by increasing the absolute values of these two parameters. Additionally, these results demonstrate that more abundant and novel localized waves may exist in the multi-component coupled systems than in the uncoupled ones.
KeywordsInteractions of localized waves Rogue wave Soliton Breather Three-component coupled derivative nonlinear Schrödinger equations Darboux transformation
We are greatly indebted to the editor and reviewer for their helpful comments and constructive suggestions, and we also express our sincere thanks to Xiaoyan Tang, Xin Wang, and other members of our discussion group for their valuable comments.
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Conflicts of interest
The authors declare that there is no conflict of interests regarding the publication of this paper.
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