中国物理B ›› 2000, Vol. 9 ›› Issue (11): 801-804.doi: 10.1088/1009-1963/9/11/001
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张睿超, 陈向炜, 梅凤翔
Zhang Rui-chao (张睿超), Chen Xiang-wei (陈向炜), Mei Feng-xiang (梅凤翔)
摘要: Non-conservative forces are exerted on a Lagrange system. Their effects on Lie symmetries, structure equation and conserved quantities of the system are studied. It can be seen that some Lie symmetries disappear and some new Lie symmetries emerge. Under certain conditions, some Lie symmetries will still remain present.
中图分类号: (Lagrangian and Hamiltonian mechanics)