数学物理学报 ›› 1999, Vol. 19 ›› Issue (4): 373-378.
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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)
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(Institute of Mathematics, Fudan Uiversity, 200433)
 | |(Institute of Mathematics, Dalian University of Technology, Dalian 116024
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摘要:
将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:
范恩贵张鸿庆. 二类变式Boussinesq方程的对称性约化和精确解[J]. 数学物理学报, 1999, 19(4): 373-378.
Fan Engui Zhang Hongqing. Symmetry reductions and similarity solutions of variant boussintsq equation systems[J]. Acta mathematica scientia,Series A, 1999, 19(4): 373-378.
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