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Abstract The (3+1 )-dimensional variable-coetfficient nonlinear SchrSdinger equation with linear and parabolic traps is studied, and an exact Kuznetsov-Ma soliton solution in certain parameter conditions is derived. These precise expressions indicate that diffraction and chirp factors influence phase, center and widths, while the gain/loss parameter only affects peaks. By adjusting the relation between the maximum accumulated time Tm and the accumulated time To based on maximum amplitude of Kuznetsov Ma soliton, postpone, maintenance and restraint of superposed Kuznetsov-Ma solitons are investigated. 相似文献
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Fusion,fission, and annihilation of complex waves for the(2+1)-dimensional generalized Calogero–Bogoyavlenskii–Schiff system
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With the help of the symbolic computation system, Maple and Riccati equation( ξ= a0+ a1ξ+ a22ξ), expansion method, and a linear variable separation approach, a new family of exact solutions with q = lx + my + nt + Γ(x, y,t) for the(2+1)-dimensional generalized Calogero–Bogoyavlenskii–Schiff system(GCBS) are derived. Based on the derived solitary wave solution, some novel localized excitations such as fusion, fission, and annihilation of complex waves are investigated. 相似文献
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Fusion,fission, and annihilation of complex waves for the (2+l)-dimensional generalized Calogero-Bogoyavlenskii-Schiff system
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With the help of the symbolic computation system, Maple and Riccati equation (ξ' = ao + a1ξ+ a2ξ2), expansion method, and a linear variable separation approach, a new family of exact solutions with q = lx + my + nt + Г(x,y, t) for the (2+1)-dimensional generalized Calogero-Bogoyavlenskii-Schiff system (GCBS) are derived. Based on the derived solitary wave solution, some novel localized excitations such as fusion, fission, and annihilation of complex waves are investigated. 相似文献
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The(3+1)-dimensional variable-coefficient nonlinear Schr?dinger equation with linear and parabolic traps is studied, and an exact Kuznetsov–Ma soliton solution in certain parameter conditions is derived. These precise expressions indicate that diffraction and chirp factors influence phase, center and widths, while the gain/loss parameter only affects peaks. By adjusting the relation between the maximum accumulated time Tm and the accumulated time T0 based on maximum amplitude of Kuznetsov–Ma soliton, postpone, maintenance and restraint of superposed Kuznetsov–Ma solitons are investigated. 相似文献
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Чаплыгин系统平衡状态的稳定性 总被引:1,自引:0,他引:1
考虑Чаплыгин系统平衡状态的稳定性,给出Чаплыгин系统的运动方程及其平衡状态的存在性条件,得到Чаплыгин系统平衡状态的一些稳定性判据,最后举例说明其应用。 相似文献
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The Birkhoff systems are the generalization of the Hamiltonian systems. Generalized canonical transformations are studied. The symplectic algorithm of the Hamiltonian systems is extended into that of the Birkhoffian systems . Symplectic differential scheme of autonomous Birkhoffian systems was structured and discussed by introducing the Kailey Transformation . 相似文献
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朱海平 《电子工业专用设备》2010,39(7):11-15
应对PC中数据的高速传输以及HDTV等消费类应用中的高格式数据传输,各种高速接口被广泛应用,而这些高速接口芯片在ATE系统上的测试遇到了很大挑战,ADVANTEST以6GSPM结合开放式模块架构的T2000测试系统提供了高效低成本的测试解决方案,可以应对HDMI等各种高速接口的测试要求,人性化的操作界面还为编程和调试提供了极大的便利。 相似文献
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朱海平 《应用数学和力学(英文版)》1998,19(9):843-849
I.IntroductionTheinverseproblemofdynamicsisoneoftheimportantsubjectsinmechanics.In1977,Szebehelysetforthaninverseproblemforthedeterminationofthet'orcefunctiontoamaterialpointintheplanefromparametricfamilyoftrajectories,andobtainedalinearfirstorderpartialdifferentialequationfortheforcefunction.Later,Erdil'l,MellsandPirast=l,MellsandBorgherol'l,BoilsandMertnsl4]extendedSzebehely'sproblemtoboththreeandndimensionalholonomicsystem.Recently,theauthorandProfessorMetFengxiangl'1studiedtheSzebehe… 相似文献