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Nonlocal symmetries and exact solutions of a variable coefficient AKNS system
Authors:Xiangpeng Xin  Lihua Zhang  Yarong Xi  Hanze Liu
Abstract:In this paper, nonlocal symmetries of variable coefficient Ablowitz-Kaup-Newell-Segur(AKNS) system are studied for the first time. In order to construct some new analytic solutions, a new variable is introduced, which can transform nonlocal symmetries into Lie point symmetries. Furthermore, using the Lie point symmetries of closed system, we give out two types of symmetry reductions and some analytic solutions. For some interesting solutions, such as interaction solutions among solitons and other complicated waves, we give corresponding images to describe their dynamic behavior.
Keywords:Nonlocal symmetry   variable coefficient equations   analytic solution   Lie point symmetry.
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