A Vector General Nonlinear Schrödinger Equation with \((m+n)\) Components

  • Xianguo Geng
  • Ruomeng LiEmail author
  • Bo Xue


A vector general nonlinear Schrödinger equation with \((m+n)\) components is proposed, which is a new integrable generalization of the vector nonlinear Schrödinger equation and the vector derivative nonlinear Schrödinger equation. Resorting to the Riccati equations associated with the Lax pair and the gauge transformations between the Lax pairs, a general N-fold Darboux transformation of the vector general nonlinear Schrödinger equation with \((m+n)\) components is constructed, which can be reduced directly to the classical N-fold Darboux transformation and the generalized Darboux transformation without taking limits. As an illustrative example, some exact solutions of the two-component general nonlinear Schrödinger equation are obtained by using the general Darboux transformation, including a first-order rogue-wave solution, a fourth-order rogue-wave solution, a breather solution, a breather–rogue-wave interaction, two solitons and the fission of a breather into two solitons. It is a very interesting phenomenon that, for all \(M>0\), there exists a rogue-wave solution for the two-component general nonlinear Schrödinger equation such that the amplitude of the rogue wave is M times higher than its background wave.


Vector general nonlinear Schrödinger equation General N-fold Darboux transformation Soliton solutions Breather solutions Rogue-wave solutions 

Mathematics Subject Classification

35Q51 35Q55 35Q53 



This work is supported by the National Natural Science Foundation of China (Grant Nos. 11931017, 11871440 and 11971442).


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Authors and Affiliations

  1. 1.School of Mathematics and StatisticsZhengzhou UniversityZhengzhouPeople’s Republic of China

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