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1.
曾云波 《高校应用数学学报(A辑)》1993,(4):339-350
本文表明,利用两个特征值问题的规范变换,不仅可以建立和它们相联系的势的约束之间以及相应的有限维Hamilton系统间的变换关系式,而且可以由一个可积系统的对合守恒积分导出另一个系统的守恒积分 相似文献
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A hierarchy of Hamiltonian systems obtained from the Lax pair of KdV hierarchy under theconstraint condition on potential u = (q, q) is. presented. The independent integrals for theseHamiltonian systems are constructed by using recursion operator and shown to be in involution.Thus this hierarchy of Hamiltonian systems is completely integrable in the sense of Liouville. andthey commute with each other. 相似文献
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曾云波 《应用数学学报(英文版)》1999,15(4):337-344
1.IntroductionRecelltlymuchworkhasbeencarriedoutinthestudyoftheseparationofvariablesofacompletelyintegrableHalniltoniansystemll--6].Forclassicalilltegrablesystemssubjecttoinversescatteringtransformationthestandardconstructionoftheaction-anglevariablesusingthepolesoftheBaker-Anheizerfullctionisequivalenttotheseparationofvariablesl31.Theabategapsolutionsofthesolitonequationsareconstructedduetotheseparationofvariablesofthestationarysolitonequationsll].Forsomekindoffinite-dimensionalintegrableHt… 相似文献
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曾云波 《数学物理学报(A辑)》1995,15(3):337-345
本文了带附加项的AKNS方程族,给出了其Lax表示,守恒律和Darboux变换。 相似文献
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RESTRICTED FLOWS OF A HIERARCHYOF INTEGRABLE DISCRETE SYSTEMS 总被引:1,自引:0,他引:1
曾云波 《应用数学学报(英文版)》1998,14(2):176-184
1.IntroductionTherestrictedflowsofsolitonhierarchyhavebeenextensivelystudied(see,forexample,[1--7]).Theapproachforconstructingrestrictedflowsofsolitonhierarchycanalsobeappliedtoobtainrestrictedflows(discretemaps)ofahierarchyofdiscreteintegrablesystems(nonlineardifferential-differenceequations)IS,9].TheserestrictedflowshavetheformofLagrangeequationsandthereforecanmodelphysicallyinterestingprocesses.Wesupposethatthehierarchyofdiscreteintegrablesystems(DIS)isassociatedwithadiscreteisospectralp… 相似文献
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For M×N spectral matrix, a kind of operation ? which satisfies combination law (a?b)?c=a?(b?c) is introduced. The discrete multi?component zero-curvature equation is deduced by using the new operation ?, and a simple method for constructing discrete multi-component integrable hierarchy is proposed. As its application, the multi-component Toda hierarchy and its two kinds of integrable couplings are worked out. 相似文献
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非线性发展方程的转换算子Ⅲ 总被引:1,自引:0,他引:1
<正> 这篇文章是非线性发展方程的转换算子Ⅰ和Ⅱ的继续.在文献[3]中,Захаров等利用了一个不含参数ξ的规范变换(但未求出这种变换的具体形式)和在变换下散射量的一些性质建立了非线性 Schr(?)dinger 方程 相似文献
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Zeng Yunbo 《数学年刊B辑(英文版)》1992,13(3):327-340
A hierarchy of integrable Hamiltonian systems with Neumann type constraint isobtained by restricting a hierarchy of evolution equations associated with λφ_(xx)+u_iλ~iφ=λ~mφ to aninvariant subspace of their recursion operator.The independentintegrals of motion and Hamiltonian functions for these Hamiltonian systems areconstructed by using relevant reeursion formula and are shown to be in involution.Thusthese Hamiltonian systems are completely integrable and commute with each other. 相似文献