得出了3-正则图是Z3-连通的充要条件:一个连通的3-正则图G是Z3-连通的当且仅当G是正文中的图1或图2。
A sufficient and necessary condition for 3-regular graphs is obtained.Namely,a 3-regular graph is Z3-connected if and only if it is graph 1 or graph 2.