上海大学学报(自然科学版) ›› 2010, Vol. 16 ›› Issue (4): 376-379.

• 数理化科学 • 上一篇    下一篇

有限群的可补置换子群与p-幂零性

晁芳,郭秀云   

  1. (上海大学 理学院,上海 200444)
  • 收稿日期:2009-06-03 出版日期:2010-08-30 发布日期:2010-08-30
  • 通讯作者: 郭秀云(1956~),男,教授,博士生导师,博士,研究方向为有限群. E-mail:xyguo@shu.edu.cn
  • 基金资助:

    国家自然科学基金资助项目(10771132);高等学校博士点基金资助项目(200802800011);上海大学研究生创新基金资助项目(SHUCX092004)

SS-quasinormality of Subgroups and the p-nilpotency of Finite Groups

CHAO Fang,GUO Xiu-yun   

  1. (College of Sciences, Shanghai University, Shanghai 200444, China)
  • Received:2009-06-03 Online:2010-08-30 Published:2010-08-30

摘要:

有限群G的子群H称为G的SS-拟正规子群,如果存在G的子群B,使得G=HB且对B的每个Sylow子群Q,都有HQ=QH.利用幂指数等于Sylow p-子群幂指数的交换p-子群的SS-拟正规性,来研究有限群的p-幂零性,推广和改进了一些已有的结果.

关键词:  有限群;SS-拟正规子群;p-幂零群

Abstract:

A subgroup H of a finite group G is said to be SS-quasinormal in G if there exists a subgroup B  of  G such that G=HB and H  permutes with every Sylow subgroup of  B.  In this paper, some conditions for a finite group to be p-nilpotent are given using SS-quasinormality of some abelian subgroups with prime power order, and several known results are generalized and improved. 

Key words: finite group; SS-quasinormal subgroups; p-nilpotent groups

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