点击次数：

论文类型：期刊论文

发表时间：2010-04-01

发表刊物：COMMUNICATIONS IN THEORETICAL PHYSICS

收录刊物：SCIE、ISTIC

卷号：53

期号：4

页面范围：693-697

ISSN号：0253-6102

关键字：extended conservation laws; Lagrangian function; Noether's theorem

摘要：Self-adjoint theorem is introduced to match the corresponding functional of the given differential equations, and then Noether's theorem is used to determine the extended conservation laws of the original equations. Finally, as the application of the method, the conservation laws of Drinfel'd-Sokolov-Wilson equation and Benjamin-Bona-Mahony equation are constructed.