几个群类的闭性  

The Closed Properties of Several Classes of Groups

作　　者：杨丽华[1] 闫杰生[2] 

机构地区：[1]中原工学院理学院,河南郑州450007 [2]商丘职业技术学院,河南商丘476000

出　　处：《商丘职业技术学院学报》2008年第2期18-19,共2页JOURNAL OF SHANGQIU POLYTECHNIC

摘　　要：考察了常见群类的闭性,以及它们的根和剩余.证明了这些群类构成的K-群群类共有两种:幂零群和P1群.In this paper, we discuss the closed properties .roots and surplus of class of groups. As a result, we prove that there are two casese of classes of groups of group ： nilpotent group or group, where classes of groups of group are constructed by these classes of group.

关 键 词：群类 幂零群 闭群类 P^-群 群类的根 群类的剩余 

分 类 号：O18[理学—数学]