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Exact Analytic N-Soliton-Like Solution in Wronskian Form for a Generalized Variable-Coefficient Korteweg-de Vries Model from Plasmas and Fluid Dynamics 总被引:2,自引:0,他引:2 下载免费PDF全文
Applicable in fluid dynamics and plasmas, a generalized variable-coefficient Korteweg-de Vries (vcKdV) model is investigated. The bilinear form and analytic N-soliton-like solution for such a model are derived by the Hirota method and Wronskian technique. Additionally, the bilinear auto-Bǎcklund transformation between (N-1)- soliton-like and N-soliton-like solutions is verified. 相似文献
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Painleve Property and New Analytic Solutions for a Variable-Coefficient Kadomtsev--Petviashvili Equation with Symbolic Computation 下载免费PDF全文
A variable-coemcient Kadomtsev-Petviashvili equation is investigated. The Painlev6 analysis leads to its explicit Painlevd-integrable conditions. An auto-Backlund transformation and the bilinear form are presented via the truncated Painlev6 expansion and symbolic computation. Several families of new analytic solutions arepresented, including the soliton-like and periodic solutions. 相似文献
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Existence of Formal Conservation Laws of a Variable-Coefficient Korteweg--de Vries Equation from Fluid Dynamics and Plasma Physics via Symbolic Computation 总被引:1,自引:0,他引:1 下载免费PDF全文
Employing the method which can be used to demonstrate the infinite conservation laws for the standard Kortewegde Vries (KdV) equation, we prove that the variable-coeFficient KdV equation under the Painlevé test condition also possesses the formal conservation laws. 相似文献
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