摘要
在弱Hopf代数上,定义了交叉积概念,并且得到了它的两种特殊形式,冲积和扭积.特别地,给出了扭积为弱Hopf代数的一个充要条件,推广了Hopf代数的相应结论.
In this paper, the notion of crossed products over weak Hopf algebras is defined and the smash products and the twisted products are their special cases. Moreover, a sufficient and necessary condition for a twisted product to be a weak Hopf algebra is given. It generalizes the corresponding results for Hopf algebras.
出处
《数学年刊(A辑)》
CSCD
北大核心
2006年第6期779-788,共10页
Chinese Annals of Mathematics
基金
国家自然科学基金(No.10271081)北京市自然科学基金(No.1042004)河北省自然科学基金(No.102132)资助的项目.
关键词
弱HOPF代数
交叉积
扭积
Weak Hopf algebra, Crossed product, Twisted product