主要讨论Hopfπ-余代数H上π-H-余模代数与π-张量积.首先引进π-H-余模的π-张量积的概念,得到两个π-H-余模的π-张量积仍是π-H-余模;然后讨论局部有限维的Hopfπ-余代数H上π-H余模代数的对偶,给出π-H-余模代数的一个等价条件.
Let H be a Hopf π-coalgebra. By introducing the notion of π-tensor product of π-H- comodules, this paper obtains that it is still a π-H-comodule. It also discusses the dual of a π-H- comodule algebra A for local finite dimensional H and A, and gets necessary and sufficient conditions for a π-H-comodule algebra.