摘要
本文对有向树的自同构群进行了讨论,给出了有向树的自同构群的阶和一类子群.
This paper gives the step of automorphism group of a directed t(?)(?)(?) and a kind of subgroup of automorphism group of a dirscted tree
Key Words Automorphism group of directed tree, step of a group,
出处
《吉林师范大学学报（自然科学版）》
1989年第3期37-38,共2页
Journal of Jilin Normal University:Natural Science Edition
