Finite symmetry transformation groups and exact solutions of Lax integrable systems

• 来源期刊: 中国物理（英文版）
• 关键词: finite transformations Lie point symmetry Lax pair integrable
• 年，卷（期）: 2005,（8）
• 页码范围: 1495-1500
• 页数: 6页
• 语种: 英文

摘要

In this paper, the finite symmetry transformation groups and then symmetries of Lax integrable nonlinear physical systems, the Davey-Stewartson equation and the (2+1)-dimensional Camassa-Holm equation are investigated by means of a simple direct method.