本文给出了广义L-R-smash积或广义对角化交叉积成为双代数(Hopf代数)的充分必要条件,并主要给出了L-R-smash积的Maschke定理,于是得到扭smash积和对角化交叉积的Maschke定理.
In this paper,we give a sufficient and necessary condition for generalized L-R-smash products or generalized diagonal crossed products to be bialgebras(Hopf algebras),and mainly give a Maschke theorem for L-R-smash products,and hence obtain Maschke theorems for twisted smash products and diagonal crossed products.