CDG方程和耦合KdV-MKdV方程的微分不变量
Differential invariants for CDG equation and coupled KDV-MKDV equations
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摘要: 本文利用了Olver提出的等价活动标架方法,通过构造合适的活动标架,得到了CDG方程和耦合KdV-MKdV方程的微分不变量,并推得了微分不变量代数。
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关键词:
- 微分不变量 /
- 活动标架 /
- CDG方程 /
- 耦合KdV-MKdV方程
Abstract: In this paper, the differential invariants of Lie symmetry groups of the CDG equation and the coupled KdV-MKdV equations are obtained. Their syzygies and recurrence relations are classified, which are based on the algorithms of equivariant moving frames. -
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