共查询到15条相似文献,搜索用时 171 毫秒
1.
SHEN Shou-Feng 《理论物理通讯》2005,44(6):961-963
In this letter, by means of the Lax pair, Darboux transformation, and variable separation approach, a new exact solution of a sixth-order (1+1)-dimensional nonlinear evolution equation, which includes some arbitrary functions, is obtained. Abundant new localized excitations can be found by selecting appropriate functions and they are illustrated both analytically and graphically. 相似文献
2.
ZHANGJie-Fang HUANGWen-Hua 《理论物理通讯》2003,40(5):533-536
Considering that the multi-valued (folded) localized excitations may appear in many (2 1)-dimensional soliton equations because some arbitrary functions can be included in the exact solutions, we use some special types of muliti-valued functions to construct folded solitrary waves and foldons in the (2 1)-dimensional Broer-Kaup equation.These folded excitations are invesigated both analytically and graphically in an alternative way. 相似文献
3.
By an improved projective equation approach and a linear variable separation approach, a new family of exact solutions of the (2+1)-dimensional Broek--Kaup system is derived. Based on the derived solitary wave solution and by selecting appropriate functions, some novel localized excitations such as instantaneous solitons and fractal solitons are investigated. 相似文献
4.
Starting with the extended homogeneous balance method and a variable separation approach, a general variable separation solution of the Broer—Kaup system is derived. In addition to the usual localized coherent soliton excitations like dromions, lumps, rings, breathers, instantons, oscillating soliton excitations, peakon and fractal localized solutions, some new types of localized excitations, such as compacton and folded excitations, are obtained by introducing appropriate lower-dimensional piecewise smooth functions and multiple-valued functions, and some interesting novel features of these structures are revealed. 相似文献
5.
A general solution, including three arbitrary functions, is obtained
for a (2+1)-dimensional modified dispersive water-wave (MDWW)
equation by means of the WTC truncation method. Introducing proper
multiple valued functions and Jacobi elliptic functions in the seed
solution, special types of periodic folded waves are derived. In the
long wave limit these periodic folded wave patterns may degenerate
into single localized folded solitary wave excitations. The
interactions of the periodic folded waves and the degenerated
single folded solitary waves are investigated graphically and found
to be completely elastic. 相似文献
6.
In this short note, a new projective equation (Ф = σФ + Ф^2) is used to obtain the variable separation solutions with two arbitrary functions of the (2+1)-dimensional Boiti-Leon-Manna Pempinelli system (BLMP). Based on the derived solitary wave solution and by selecting appropriate functions, some novel localized excitations such as multi dromion-solitoffs and fractal-solitons are investigated. 相似文献
7.
By means of variable separation approach, quite a general excitation of the new (2 + 1)-dimensional long dispersive wave system: λqt + qxx - 2q ∫ (qr)xdy = 0, λrt - rxx + 2r ∫(qr)xdy = 0, is derived. Some types of the usual localized excitations such as dromions, lumps, rings, and oscillating soliton excitations can be easily constructed by selecting the arbitrary functions appropriately. Besides these usual localized structures, some new localized excitations like fractal-dromion, farctal-lump, and multi-peakon excitations of this new system are found by selecting appropriate functions. 相似文献
8.
In this paper,the variable separation approach is used to obtain localized coherent structures of the (2 1)-dimensional generalized Davey-Stewarson equations:iqt 1/2(qxx=qyy) (R S)q=0,Rx=-σ/2|q|y^2,Sy=-σ/2|q|2/x.Applying a special Baecklund transformation and introducing arbitrary functions of the seed solutions.and abundance of the localized structures of this model is derived,By selceting the arbitrary functions appropriately,some special types of localized excitations such as dromions,dromion lattice,breathers,and instantons are constructed. 相似文献
9.
By means of the Baecklund transformation, a quite general variable separation solution of the (2 1)-dimensional Maccari systems is derived. In addition to some types of the usual localized excitations such as dromion, lumps, ring soliton and oscillated dromion, breathers solution, fractal-dromion, fractal-lump and chaotic soliton structures can be easily constructed by selecting the arbitrary functions appropriately, a new novel class of coherent localized structures like peakon solution and compacton solution of this new system are found by selecting apfropriate functions. 相似文献
10.
Fractal localized structures related to Jacobian elliptic functions in the higher-order Broer-Kaup system 下载免费PDF全文
This work reveals a novel phenomenon—that the localized coherent structures of a (2﹢1)﹣dimensional physical model possesses fractal behaviours. To clarify the interesting phenomenon, we take the (2﹢1)﹣dimensional higher-order Broer-Kaup system as a concrete example. Starting from a B?cklund transformation, we obtain a linear equation, and then a general solution of the system is derived. From this some special localized excitations with fractal behaviours are obtained by introducing some types of lower-dimensional fractal patterns that related to Jacobian elliptic functions. 相似文献
11.
SHEN Shou-Feng 《理论物理通讯》2006,45(4):593-595
Variable separation approach that is based on Backlund transformation (BT-VSA) is extended to solve the (3 1)-dimensional Jimbo-Miwa equation and the (1 1)-dimensional Drinfel'd-Sokolov-Wilson equation. New ex act solutions, which include some low-dimensional functions, are obtained. One of the low-dimensional function is arbitrary and another must satisfy a Riccati equation. Some new localized excitations can be derived from (2 1)-dimensional localized excitations and for simplification, we omit those in this letter. 相似文献
12.
Considering that the multi-valued (folded) localized excitations may appear in many (2 1)-dimensional soliton equations because some arbitrary functions can be included in the exact solutions, we use some special types of muliti-valued functions to construct folded solitrary waves and foldons in the (2 1)-dimensional Broer-Kaup equation.These folded excitations are invesigated both analytically and graphically in an alternative way. 相似文献
13.
SHEN Shou-Feng 《理论物理通讯》2005,44(12)
In this letter, by means of the Lax pair, Darboux transformation, and variable separation approach, a new exact solution of a sixth-order (1 1)-dimensional nonlinear evolution equation, which includes some arbitrary functions,is obtained. Abundant new localized excitations can be found by selecting appropriate functions and they are illustrated both analytically and graphically. 相似文献
14.
SHEN Shou-Feng 《理论物理通讯》2006,45(2):236-238
By means of the variable separation method, new exact solutions of some (1+1)-dimensional nonlinear evolution
equations are obtained. Abundant localized excitations can be
found by selecting corresponding arbitrary functions
appropriately. Namely, the new soliton-like localized excitations
and instanton-like localized excitations are presented. 相似文献
15.
HUANG Wen-Hua 《理论物理通讯》2008,50(4):827-831
A general solution including three arbitrary functions is obtained for the (2+1)-dimensional higher-order Broer-Kaup equation by means of WTC truncation method. Introducing proper multiple valued functions and Jacobi elliptic functions in the seed solution, special types of periodic folded waves are derived. In long wave limit these periodic folded
wave patterns may degenerate into single localized folded
solitary wave excitations. The interactions of the periodic
folded waves and their degenerated single folded solitary waves
are investigated graphically and are found to be completely elastic. 相似文献