Clifford theory for G-functors

[摘要] When does a G-functor admit a Clifford theory? In this paper we give a simple axiomatic property which characterizes the existence of such a theory. Satisfaction of this condition in the different contexts leads automatically to the satisfaction of the corresponding theorems of Clifford. We apply it to several examples, some of them already known including the character and Burnside rings. (C) 2000 Academic Press.

[发布日期] 2000-09-15

[关键词] G-functor;Clifford theory