随着科学技术的快速发展,科学研究的核心已从原有的线性转向现代的非线性方向.非线性现象出现在科学与工程技术的众多领域,很多非......

随着科学的不断发展,人们已经意识到非线性现象在自然界和人类社会领域广泛存在.在非线性系统的研究中守恒律扮演着越来越重要的角......

The definition and criterion of the Mei symmetry of a relativistic variable mass system are given. The relation between ......

A form invariance of the relativistic Birkhoffian system is studied, and the conserved quantities of the system are obta......