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Jaulent-Miodek族产生的一个完全可积的有限维三次系统
A COMPLETELY INTEGRABLE FINITE-DIMENSION CUBIC SYSTEM GENERATED BY THE JAULENT-MIODEK HIERARCHY
【摘要】 本文研究Jaulent-Miodek族的对易表示,在无反射位势的特征函数表示:即 q=-〈ψ2,ψ2〉,r=(Aψ2,ψ2); (q,r)T≡f(ψ),ψ≡(ψ1,ψ2)T所诱导的约束条件下,Jaulent-Miodek族的Lax对的空间部分被非线性化为一个完全可积系统(R2N,dψ1∧dψ2,H=(?)0),其中(?)0=i〈Aψ1,ψ2〉+1/2〈ψ1,ψ2〉〈Aψ2,ψ2〉.时间部分的非线性化导出它的N-对合系{(?)m},相容方程组((?)0),((?)m)的对合解被f映为第m个Jaulent-Miodek方程的解。
【Abstract】 In this paper, the commutative representation of the Jaulent-Miodek Hierarchy is discussed. Under the constrained condition induced by the eigenfunction expression of the reflectionless potentialthe spatial part of the Lax pair of the Jaulent-Miodek equation is nonlinearized to be a comletely in-tegrable systemwhile the nonlinearization of the time part leads to its N-involutive system {Fm} . The involutive solution of the compatible system (F0). (Fm) is mapped by / into the solution of the m -th Jaulent-Miodek equation.
【Key words】 Commutative Representation; Lenard Sequence; Involutive Solution; Hamiltoni-an Phase-flow.;
- 【文献出处】 高校应用数学学报A辑(中文版) ,Applied Mathematics A Journal of Chinese Universities , 编辑部邮箱 ,1993年02期
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