Journal
CHAOS SOLITONS & FRACTALS
Volume 165, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chaos.2022.112786
Keywords
Three-wave resonant interaction system; Weakly nonlinear dispersive medium; Generalized Darboux transformation; Y-shaped bright-dark-bright solitons; Soliton interactions
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Funding
- National Natural Science Foundation of China
- Fundamental Research Funds for the Central Universities, China
- [11772017]
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This paper studies the resonant mixing of waves in a weakly nonlinear dispersive medium. By constructing an N-fold generalized Darboux transformation, three types of Y-shaped bright-dark-bright solitons with different characteristic lines are obtained. Graphical illustrations show that the interactions among these solitons are elastic.
In this paper, a three-wave resonant interaction system, which describes the resonant mixing of the waves in a weakly nonlinear dispersive medium, is studied. Starting from the first-order Darboux transformation, we construct an N-fold generalized Darboux transformation (GDT) in which n different spectral parameters are involved, where n and N are the positive integers, and n <= N. Utilizing the obtained N-fold GDT, we derive three types of the Y-shaped bright-dark-bright solitons. Those solitons have different characteristic lines as follows: three rays; one ray and two curves; one ray, one line and two curves. Interactions among the three kinds of Y-shaped bright-dark-bright solitons are graphically illustrated. Those interactions are shown to be elastic.
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