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1.
李德生 《原子与分子物理学报》2004,21(1):133-138
通过一个简单的变换,变系数(2 1)维Broer-Kaup方程被简化为人们熟知的变系数Burgers方程。利用近年来广泛使用的齐次平衡法和tanh-函数法,获得了变系数(2 1)维Broer-Kaup方程的一些新的精确解。 相似文献
2.
变系数(2+1)维Broer-Kaup方程的新精确解 总被引:1,自引:1,他引:0
李德生 《原子与分子物理学报》2004,21(1)
通过一个简单的变换,变系数(2+1)维Broer-Kaup方程被简化为人们熟知的变系数Burgers方程.利用近年来广泛使用的齐次平衡法和tanh-函数法,获得了变系数(2+1)维Broer-Kaup方程的一些新的精确解. 相似文献
3.
变系数(2+1)维Broer-Kaup方程的新精确解P 总被引:1,自引:1,他引:1
李德生 《原子与分子物理学报》2004,21(1):133-138
通过一个简单的变换,变系数(2+1)维Broer-Kaup方程被简化为人们熟知的变系数Burgers方程.利用近年来广泛使用的齐次平衡法和tanh-函数法,获得了变系数(2+1)维Broer-Kaup方程的一些新的精确解. 相似文献
4.
变系数(2+1)维Broer-Kaup方程的精确解 总被引:15,自引:4,他引:15
利用齐次平衡原则,导出了变系数(2+1)维Broer-Kaup方程的B?cklund变换(BT),并由该BT,求出了(2+1)维Broer-Kaup方程的各种形式的精确解. 相似文献
5.
变系数(2+1)维Broer-Kaup方程新的类孤子解 总被引:1,自引:0,他引:1
基于齐次平衡原则和分离变量法的思想,通过两个推广的Riccati方程组和Mathematica软件,求出了变系数(2+1)维Broer-kaup方程的一些精确解,包括各种类孤立波解、类周期解,其中许多解是新的. 相似文献
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In this paper,an improved projective approach is used to obtain the variable separation solutions with two arbitrary functions of the (2+1)-dimensional Broek-Kaup equation with variable coefficients (VCBK). Based on the derived solitary wave solution and using a known chaotic system,some novel chaotic solutions are investigated. 相似文献
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New doubly periodic and multiple soliton solutions of the generalized (3+l)-dimensional KP equation with variable coefficients 下载免费PDF全文
A new generalized Jacobi elliptic function method is used to construct the exact travelling wave solutions of nonlinear partial differential equations (PDEs) in a unified way. The main idea of this method is to take full advantage of the elliptic equation which has more new solutions. More new doubly periodic and multiple soliton solutions are obtained for the generalized (3+1)-dimensional Kronig-Penny (KP) equation with variable coefficients. This method can be applied to other equations with variable coefficients. 相似文献
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The explored solutions described some different solutions as, Lump soliton, a solitary wave and exponential solutions. These solutions are investigated through some new Lie infinitesimals for the (3 + 1) dimensional variable coefficients Kudryashov-Sinelshchikov (VCKS). We used the fourth prolongation to investigate fifteen cases of Lie vectors. In each case, there is an infinite number of possibilities of vectors due to the unknown arbitrary functions and the variable coefficients for the considered model. We selected one case and examined the commutative product between multi unknown Lie infinitesimals for the (3 + 1) dimensional (VCKS) equation and this complicated process resulted from some new Lie vectors. The commutative product generates a system of nonlinear ODEs which had been solved manually. Through three stages of Lie symmetry reduction using the equivalence transformation, (VCKS) equation is reduced to solvable nonlinear ODEs using various combinations of optimal Lie vectors. By solving these ODEs, we investigate new analytical solutions for these ODEs. Back substituting to the original variables generates new solutions for (VCKS). Some selected solutions are illustrated through three-dimensional plots. 相似文献
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《Waves in Random and Complex Media》2013,23(4):444-457
In this paper, a (2+1)-dimensional generalized Bogoyavlensky–Konopelchenko (gBK) equation is investigated, which can be used to describe the interaction of a Riemann wave propagating along y-axis and a long wave propagating along x-axis. The complete integrability of the gBK equation is systematically presented. By employing Bell’s polynomials, a lucid and systematic approach is proposed to systematically study its bilinear formalism, bilinear Bäcklund transformations, Lax pairs, respectively. Furthermore, based on multidimensional Riemann theta functions, the periodic wave solutions and soliton solutions of the gBK equation are derived. Finally, an asymptotic relation between the periodic wave solutions and soliton solutions are strictly established under a certain limit condition. 相似文献
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According to the conjecture based on some known facts of integrable
models, a new (2+1)-dimensional supersymmetric integrable bilinear
system is proposed. The model is not only the extension of the known
(2+1)-dimensional negative Kadomtsev--Petviashvili equation but also
the extension of the known (1+1)-dimensional supersymmetric
Boussinesq equation. The infinite dimensional Kac--Moody--Virasoro
symmetries and the related symmetry reductions of the model are
obtained. Furthermore, the traveling wave solutions including
soliton solutions are explicitly presented. 相似文献
16.
By using the extended F-expansion method, the exact solutions,including periodic wave solutions expressed by Jacobi elliptic functions, for (2+1)-dimensional nonlinear Schrǒdinger equation are derived. In the limit cases, the solitary wave solutions and the other type of traveling wave solutions for the system are obtained. 相似文献
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ZHANG Jin-liang WANG Ming-liang FANG Zong-de 《原子与分子物理学报》2004,21(1):78-82
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Extended symmetry transformation of (3+1)-dimensional generalized nonlinear Schrdinger equation with variable coefficients 下载免费PDF全文
In this paper, the extended symmetry transformation of (3+1)-dimensional (3D) generalized nonlinear Schrdinger (NLS) equations with variable coefficients is investigated by using the extended symmetry approach and symbolic computation. Then based on the extended symmetry, some 3D variable coefficient NLS equations are reduced to other variable coefficient NLS equations or the constant coefficient 3D NLS equation. By using these symmetry transformations, abundant exact solutions of some 3D NLS equations with distributed dispersion, nonlinearity, and gain or loss are obtained from the constant coefficient 3D NLS equation. 相似文献
19.
借助于符号计算软件Maple,通过一种构造非线性偏微分方程(组)更一般形式精确解的直接方法即改进的代数方法,求解(2+1) 维 Broer-Kau-Kupershmidt方程,得到该方程的一系列新的精确解,包括多项式解、指数解、有理解、三角函数解、双曲函数解、Jacobi 和 Weierstrass 椭圆函数双周期解.
关键词:
代数方法
(2+1) 维 Broer-Kau-Kupershmidt 方程
精确解
行波解 相似文献