Soliton and breather solutions on the nonconstant background of the local and nonlocal Lakshmanan-Porsezian-Daniel equations by Backlund transformation

被引:6
作者
Xie, Wei-Kang [1 ]
Fan, Fang-Cheng [1 ,2 ]
机构
[1] Minnan Normal Univ, Sch Math & Stat, Zhangzhou 363000, Peoples R China
[2] Fujian Key Lab Granular Comp & Applicat, Zhangzhou 363000, Peoples R China
来源
ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND PHYSIK | 2023年 / 74卷 / 05期
基金
中国国家自然科学基金;
关键词
Local and nonlocal Lakshmanan-Porsezian-Daniel equations; Backlund transformation; Nonconstant background; Soliton; Breather; NONLINEAR SCHRODINGER-EQUATION; ROGUE WAVE SOLUTIONS; DE-VRIES EQUATION; DARBOUX TRANSFORMATION; EXPLICIT SOLUTIONS; INTEGRABILITY; SYSTEM;
D O I
10.1007/s00033-023-02082-x
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Under investigation in this paper is the integrable Lakshmanan-Porsezian-Daniel (LPD) equation, which was proposed as a model for the nonlinear spin excitations in the one-dimensional isotropic biquadratic Heisenberg ferromagnetic spin. Our main purpose was to construct soliton and breather solutions on the nonconstant background for the integrable local and nonlocal LPD equations. Firstly, the Backlund transformations are constructed based on the pseudopotential of equations. Secondly, starting from the nonconstant initial solution sech and applying the obtained transformation, various nonlinear wave solutions of the local LPD equation are provided, including the time-periodic breather, W-shaped soliton, M-type soliton and two-soliton solutions, the elastic interactions between the two-soliton solutions are shown and the relationship between parameters and wave structures is discussed. Thirdly, beginning with the nonconstant initial solutions sech and tanh, the time-periodic breather, bell-shaped one-soliton and anti-bell-shaped one-soliton solutions of the nonlocal LPD equation are generated and these solutions possess no singularity. What is more, the time-periodic breather solutions exhibit the x-periodic background and double-periodic background, which is different from the previous results. The corresponding dynamics of these solutions related to the integrable local and nonlocal LPD equations are illustrated graphically. The results in this paper might be helpful for us to understand the nonlinear characteristics of magnetic materials.
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页数:14
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