Interactions between exotic multi-valued solitons of the (2+1)-dimensional Korteweg-de Vries equation describing shallow water wave

被引:69
作者
Dai, Chao-Qing [1 ,2 ]
Wang, Yue-Yue [1 ,2 ]
Fan, Yan [1 ,2 ]
Zhang, Jie-Fang [3 ]
机构
[1] Zhejiang A&F Univ, Sch Sci, Linan 311300, Zhejiang, Peoples R China
[2] Zhejiang A&F Univ, Zhejiang Prov Key Lab Chem Utilizat Forestry Biom, Linan 31130, Zhejiang, Peoples R China
[3] Zhejiang Univ Media & Commun, Sch Elect Informat, Hangzhou 310018, Peoples R China
基金
中国国家自然科学基金;
关键词
Interactions between multi-valued solitons; (2+1)-dimensional Korteweg-de Vries equation; Exponential-form variable separation solution; VARIABLE SEPARATION SOLUTIONS; COMBINED BREATHER; ROGUE WAVE; EVOLUTION; DISPERSION/DIFFRACTION; MODEL;
D O I
10.1016/j.apm.2019.11.056
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Korteweg-de Vries equation governs the weakly nonlinear long wave whose phase speed reaches a simple maximum of wave with the infinite length in shallow water wave. The exponential-form variable separation solution of (2+1)-dimensional Kortweg-de Vries equation is found via the two-function method, and this solution covers many special combined solutions including sinh-cosh,sin-cos,sech-tanh,csch-coth,sec-tan and csc-cot solutions. From the exponential-form solution with choosing suitable functions, inelastic interactions between special multi-valued solitons with two loops such as anti-bell-shaped, anti-peak-shaped semifoldons and anti-foldon are graphically and analytically studied. By the asymptotic analysis, phase shift and its difference during interactions between multivalued solitons are analytically given. (C) 2019 Elsevier Inc. All rights reserved.
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页码:506 / 515
页数:10
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