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一类广义分离变量系统的全局稳定性
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作者 蹇继贵 李跃忠 《南昌大学学报(理科版)》 CAS 北大核心 2004年第1期49-53,共5页
借助一般可分离变量系统的Lyapunov函数方法,对一类广义分离变量系统的全局稳定性和不稳定性进行了讨论,通过分析技巧得到了由系统自身特点所给出的显示代数判据,这些结果验证方便,改进和推广了有关文献中的相应结果。
关键词 广义分离变量系统 全局稳定性 LYAPUNOV函数 生态系统 平凡解
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时变非线性分离变量系统解的稳定性与有界性
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作者 关治洪 《江汉石油学院学报》 CSCD 北大核心 1991年第4期94-96,共3页
关键词 时变非线性 分离变量系统 稳定性 有界性
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高维分离变量型非线性系统关于部份变元的稳定性 被引量:1
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作者 李林 蔺小林 《贵州工学院学报》 1993年第3期82-89,共8页
本文对高维分离变量型非线性系统的零解关于部分变元的稳定性进行了讨论,利用V函数方法给出了较一般的结论,并对一类特殊的分离变量型系统,给出了其零解关于部分变元稳定的充分条件。
关键词 稳定性 分离变量系统 非线性系统
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Annihilation Solitons and Chaotic Solitons for the (2+1)-Dimensional Breaking Soliton System 被引量:10
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作者 MA Song-Hua QIANG Ji-Ye FANG Jian-Ping 《Communications in Theoretical Physics》 SCIE CAS CSCD 2007年第4X期662-666,共5页
By means of an improved mapping method and a variable separation method, a series of variable separation solutions including solitary wave solutions, periodic wave solutions and rational function solutions) to the (... By means of an improved mapping method and a variable separation method, a series of variable separation solutions including solitary wave solutions, periodic wave solutions and rational function solutions) to the (2+1)-dimensional breaking soliton system is derived. Based on the derived solitary wave excitation, we obtain some special annihilation solitons and chaotic solitons in this short note. 展开更多
关键词 improved mapping approach variable separation approach breaking soliton system annihilation solitons chaotic solitons
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New Exact Solution of (N+1)-Dimensional Burgers System 被引量:1
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作者 SHENShou-Feng ZHANGJun PANZu-Liang 《Communications in Theoretical Physics》 SCIE CAS CSCD 2005年第3期389-390,共2页
In this letter, using a Baecklund transformation and the new variableseparation approach, we find a new general solution of the (N+1)-dimensional Burgers system. Theform of the universal formula obtained from many (2+... In this letter, using a Baecklund transformation and the new variableseparation approach, we find a new general solution of the (N+1)-dimensional Burgers system. Theform of the universal formula obtained from many (2+1)-dimensional system is extended. 展开更多
关键词 variable separation approach (N+1)-dimensional burgers system backlundtransformation
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Fission and Fusion of Localized Coherent Structures for a Higher-Order Broer-Kaup System 被引量:8
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作者 MAZheng-Yi ZHENGChun-Long 《Communications in Theoretical Physics》 SCIE CAS CSCD 2005年第6期993-997,共5页
Starting from a Backlund transformation and taking a special ansatz for the function f, we can obtain a much more generalexpression of solution that includes some variable separated functions for the higher-order Broe... Starting from a Backlund transformation and taking a special ansatz for the function f, we can obtain a much more generalexpression of solution that includes some variable separated functions for the higher-order Broer-Kaup system. From this expression, we investigate the interactions of localized coherent structures such as the multi-solitonic excitations and find the novel phenomenon that their interactions have non-elastic behavior because the fission/fusion may occur after the interaction of each localized coherent structure. 展开更多
关键词 higher-order Broer-Kaup system variable separation approach Backlund transformation soliton fission soliton fusion
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Soliton Fission and Fusion in (2+l)-Dimensional Boiti-Leon-Pempinelli System
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作者 ZHENGChun-Long FANGJian-Ping CHENLi-Qun 《Communications in Theoretical Physics》 SCIE CAS CSCD 2005年第4期681-686,共6页
By means of a special Painleve—Baecklund transformation and a multilinearvariable separation approach, an exact solution with arbitrary functions of the (2+1)-dimensionalBoiti-Leon-Pempinelli system (BLP) is derived.... By means of a special Painleve—Baecklund transformation and a multilinearvariable separation approach, an exact solution with arbitrary functions of the (2+1)-dimensionalBoiti-Leon-Pempinelli system (BLP) is derived. Based on the derived variable separation solution, weobtain some special soliton fission and fusion solutions for the higher dimensional BLP system. 展开更多
关键词 variable separation approach BLP system soliton fission soliton fusion
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On Feasibility of Variable Separation Method Based on Hamiltonian System for a Class of Plate Bending Equations 被引量:5
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作者 额布日力吐 阿拉坦仓 《Communications in Theoretical Physics》 SCIE CAS CSCD 2010年第3期569-574,共6页
The eigenfunction system of infinite-dimensional Hamiltonian operators appearing in the bending problem of rectangular plate with two opposites simply supported is studied. At first, the completeness of the extended e... The eigenfunction system of infinite-dimensional Hamiltonian operators appearing in the bending problem of rectangular plate with two opposites simply supported is studied. At first, the completeness of the extended eigenfunction system in the sense of Cauchy's principal value is proved. Then the incompleteness of the extended eigenfunction system in general sense is proved. So the completeness of the symplectic orthogonal system of the infinite-dimensional Hamiltonian operator of this kind of plate bending equation is proved. At last the general solution of the infinite dimensional Hamiltonian system is equivalent to the solution function system series expansion, so it gives to theoretical basis of the methods of separation of variables based on Hamiltonian system for this kind of equations. 展开更多
关键词 plate bending equation infinite-dimensioanl Hamiltonian operator eigenfunction system COMPLETENESS general solution
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Evolutional Properties of Localized Excitations for Generalized Broer-Kaup System in (2+1) Dimensions
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作者 ZHENG Chun-Long YE Jian-Feng XU Yuan 《Communications in Theoretical Physics》 SCIE CAS CSCD 2006年第3X期461-466,共6页
Using a special Painleve-Baecklund transformation as well as the extended mapping approach and the linear superposition theorem, we obtain new families of variable separation solutions to the (2+1)-dimensional gene... Using a special Painleve-Baecklund transformation as well as the extended mapping approach and the linear superposition theorem, we obtain new families of variable separation solutions to the (2+1)-dimensional generalized Broer-Kaup (GBK) system. Based on the derived exact solution, we reveal some novel evolutional behaviors of localized excitations, i.e. fission and fusion phenomena in the (2+1)-dimensional GBK system. 展开更多
关键词 GBK system variable separation solution localized excitation FISSION FUSION
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Multi-linear Variable Separation Approach to Solve a (1+1)-Dimensional Coupled Integrable Dispersionless System
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作者 SHEN Shou-Feng 《Communications in Theoretical Physics》 SCIE CAS CSCD 2005年第5X期779-782,共4页
The multi-linear variable separation approach (MLVSA ) is very useful to solve (2+ 1)-dimensional integrable systems. In this letter, we extend this method to solve a (1+1)-dimensional coupled integrable dispersion-le... The multi-linear variable separation approach (MLVSA ) is very useful to solve (2+ 1)-dimensional integrable systems. In this letter, we extend this method to solve a (1+1)-dimensional coupled integrable dispersion-less system.Namely, by using a Backlund transformation and the MLVSA, we find a new general solution and define a new "universal formula". Then, some new (1+1)-dimensional coherent structures of this universal formula can be found by selecting corresponding functions appropriately. Specially, in some conditions, bell soliton and kink soliton can transform each other, which are illustrated graphically. 展开更多
关键词 variable separation approach (1+1)-dimensional coupled integrable dispersion-less system co-erent structure
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New Exact Solutions and Localized Structures for (3+1)-Dimensional Burgers System
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作者 LI Jiang-Bo MA Song-Hua REN Qing-Bao FANG Jian-Ping ZHENG Chun-Long 《Communications in Theoretical Physics》 SCIE CAS CSCD 2008年第4期955-959,共5页
With an extended mapping approach and a linear variable separation method, new families of variable separation solutions (including solitary wave solutions, periodic wave solutions, and rational function solutions) ... With an extended mapping approach and a linear variable separation method, new families of variable separation solutions (including solitary wave solutions, periodic wave solutions, and rational function solutions) with arbitrary functions for (3+1)-dimensionai Burgers system is derived. Based on the derived excitations, we obtain some novel localized coherent structures and study the interactions between solitons. 展开更多
关键词 extended mapping approach variable separation method (3+1)-dimensional Burgers system localized coherent structures the interactions between solitons
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Solitons with Periodic Behavior in Korteweg-de Vries Type Models Related toSchrodinger System
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作者 ZHENGChun-Long ZHANGJie-Fang +1 位作者 XUChang-Zhi CHENLi-Qun 《Communications in Theoretical Physics》 SCIE CAS CSCD 2005年第5期850-854,共5页
The linear variable separation approach is successfully extended to(1+1)-dimensional Korteweg-de Vries (KdV) type models related to Schrodinger system. Somesignificant types of solitons such as compaction, peakon, and... The linear variable separation approach is successfully extended to(1+1)-dimensional Korteweg-de Vries (KdV) type models related to Schrodinger system. Somesignificant types of solitons such as compaction, peakon, and loop solutions with periodic behaviorare simultaneously derived from the (l+l)-dimensional soliton system by entrancing appropriatepiecewise smooth functions and multivalued functions. 展开更多
关键词 KdV type system variable separation approach SOLITON periodic behavior
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New Families of Rational Form Variable Separation Solutions to(2+1)-Dimensional Dispersive Long Wave Equations
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作者 WEN Xiao-Yong 《Communications in Theoretical Physics》 SCIE CAS CSCD 2009年第5期789-793,共5页
With the aid of symbolic computation system Maple, some families of new rational variable separation solutions of the (2+1)-dimensional dispersive long wave equations are constructed by means of a function transfor... With the aid of symbolic computation system Maple, some families of new rational variable separation solutions of the (2+1)-dimensional dispersive long wave equations are constructed by means of a function transformation, improved mapping approach, and variable separation approach, among which there are rational solitary wave solutions, periodic wave solutions and rational wave solutions. 展开更多
关键词 improved mapping approach variable separation method (2+1)-dimensional dispersive long wave equations symbolic computation
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Variable Separation Approach to Solve (2 + 1)-Dimensional Generalized Burgers System: Solitary Wave and Jacobi Periodic Wave Excitations
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作者 ZHENGChun-Long 《Communications in Theoretical Physics》 SCIE CAS CSCD 2004年第3期391-396,共6页
By means of the standard truncated Painlevé expansion and a variable separation approach, a general variable separation solution of the generalized Burgers system is derived. In addition to the usual localized co... By means of the standard truncated Painlevé expansion and a variable separation approach, a general variable separation solution of the generalized Burgers system is derived. In addition to the usual localized coherent soliton excitations like dromions, lumps, rings, breathers, instantons, oscillating soliton excitations, peakons, foldons, and previously revealed chaotic and fractal localized solutions, some new types of excitations — compacton and Jacobi periodic wave solutions are obtained by introducing appropriate lower dimensional piecewise smooth functions and Jacobi elliptic functions. 展开更多
关键词 generalized Burgers system variable separation approach solitary wave Jacobi periodic wave
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Notes on Multi-linear Variable Separation Approach
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作者 SHENShou-Feng ZHANGJun PANZu-Liang 《Communications in Theoretical Physics》 SCIE CAS CSCD 2005年第4期582-584,共3页
The multi-linear variable separation approach method is very useful to solve (2+1)-dimensional integrable systems. In this letter, we extend this method to solve (1+1)-dimensional Boiti system, (2+1)-dimensional Burge... The multi-linear variable separation approach method is very useful to solve (2+1)-dimensional integrable systems. In this letter, we extend this method to solve (1+1)-dimensional Boiti system, (2+1)-dimensional Burgers system, (2+1)-dimensional breaking soliton system, and (2+1)-dimensional Maccari system. Some new exact solutions are obtained and the universal formula obtained from many (2+1)-dimensional systems is extended or modified. 展开更多
关键词 variable separation approach (1+1)-dimensional Boiti system (2+1)-dimensional Burgers system (2+1)-dimensional breaking soliton system (2+1) -dimensional Maccari system
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Quasi-periodic and Non-periodic Waves in (2q-1)-Dimensional Nonlinear Systems
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作者 TANG Xiao-Yan LOU Sen-Yue 《Communications in Theoretical Physics》 SCIE CAS CSCD 2005年第4X期583-588,共6页
New exact quasi-periodic and non-periodic solutions for the (2+ 1)-dimensional nonlinear systems are studied by means of the multi-linear variable separation approach (MLVSA) and the Jacobi elliptic functions wit... New exact quasi-periodic and non-periodic solutions for the (2+ 1)-dimensional nonlinear systems are studied by means of the multi-linear variable separation approach (MLVSA) and the Jacobi elliptic functions with the space-time-dependent modulus. Though the result is valid for all the MLVSA solvable models, it is explicitly shown for the long-wave and short-wave interaction model. 展开更多
关键词 quasi-periodic waves non-periodic waves multi-linear variable separation approach the longwave and thort-wave interaction model
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Variable Separation Approach to Solve a (2+1)-Dimensional Integrable System
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作者 SHENShou-Feng PANZu-Liang ZHANGJun 《Communications in Theoretical Physics》 SCIE CAS CSCD 2004年第4期497-498,共2页
In this letter, starting from a B?cklund transformation, a general solution of a (2+1)-dimensional integrable system is obtained by using the new variable separation approach.
关键词 variable separation approach (2+1)-dimensional integrable system localized coherent structure
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