余单子的类群元及其性质  

Group-like Element of Comonad and Its Properties

作　　者：代瑞香[1] 

机构地区：[1]石河子大学师范学院数学系,新疆石河子832003

出　　处：《长春师范学院学报（自然科学版）》2009年第3期11-12,共2页Journal of Changchun Teachers College

基　　金：石河子大学高层次人才科研启动资金专项(RCZX200735)

摘　　要：根据A-上环(A是代数)的类群元的定义及有关性质,本文给出T-余单子(T是单子)的类群元的定义,研究此类群元的存在条件,并给出类群元与缠绕结构之间的相关性质.According to the definition and some properties of the group - like element of A - eorings （ A is an algebra）, firstly the definition of the group - like element of T - comonad is introduced, then the existence of group - like element is stud- ied,and lastly some properties between group like element and entwining structure of monad and comonad are given.

关 键 词：余单子 类群元 缠绕模 

分 类 号：O153.6[理学—数学]