数学物理学报 ›› 1998, Vol. 18 ›› Issue (2): 228-234.

• 论文 • 上一篇    下一篇

一个求孤子方程有限带势解的方法

周汝光   

  1. 徐州师范大学 徐州 221009
  • 收稿日期:1996-10-21 修回日期:1997-03-26 出版日期:1998-06-26 发布日期:1998-06-26
  • 基金资助:
    国家教委高校博士点基金资助

A Method to Seek the Finite-Band Solution of Soliton Equation

Zhou Ruguang   

  1. Xuzhu Normol University, Xuzhu 221009
  • Received:1996-10-21 Revised:1997-03-26 Online:1998-06-26 Published:1998-06-26

摘要: 基于Lax对非线性化方法,我们以KdV方程为例给出了一个构造孤子方程的有限带势解的方法.通过Lax对非线性化KdV方程被分解成两个有限维可积系统,进而找到这些有限维可积系统公共的角-作用坐标,最终我们获得了KdV方程的有限带势解.

关键词: 孤立子, Lax对非线性化, 有限带势解, 超椭圆曲线

Abstract: Based on the method of the nonlinearization of Lax pair, a method to seek the finite-band solution of solton equation is presented. We take KdV equation as an example. First through the nonlinearization of Lax pair, we decompose the KdV equation into two finite-dimensional integrable systems; then we give a common angle-action variables for these two Hamiltonian systems. Fanilly we obtain the finite-band solution of KdV equation.

Key words: Soliton, Nonlinearization of Lax pair, Finite-band solution, Hyperellptical curve