数学物理学报 ›› 1999, Vol. 19 ›› Issue (4): 373-378.

• 论文 • 上一篇    下一篇

二类变式Boussinesq方程的对称性约化和精确解

  

  1. 复旦大学数学研究所 |上海 200433)

    (大连理工大学数学科学研究所 |大连 116024)

  • 出版日期:1999-11-01 发布日期:1999-11-01

Symmetry reductions and similarity solutions of variant boussintsq equation systems

  1. (Institute of Mathematics, Fudan Uiversity, 200433)

     |                                                    |(Institute of Mathematics, Dalian University of Technology, Dalian 116024

     

  • Online:1999-11-01 Published:1999-11-01

摘要:

Clarkson等最近发展的直接法推广应用于变式Boussinesq 方程组,给出四种类型对称性约化方程和三组显式精确解.结果表明:在适当变换下变式Boussinesq方程组可约化为具有椭圆函数解的Duffing型方程和PainlevéⅡ方程,并且约化结果包含有关于时间t的二种类型奇点;极点和代数支点.

关键词: Boussinesq方程组, 直接法, 约化, 精确解.

Abstract:

 Some new symmetry reductions and similarity solutions of variant Boussinesq equations systems are given by using direct method developed by clarkson and kruskal recently. Duffing equation and painlené Ⅱ type equation are included in reduction equations. Both poles and algebraic branch point for t can be entered into the solutions of variant Boussinesq equations.

Key words:  Boussinesqequationsystems, Directmethod, Reduction, Exactsolution.

中图分类号: 

  • 35Q