%0 Journal Article
%T Injective Hopf bimodules, cohomologies of infinite dimensional Hopf algebras and graded-commutativity of the Yoneda product
%A Rachel Taillefer
%J Mathematics
%D 2002
%I arXiv
%X We prove that the category of Hopf bimodules over any Hopf algebra has enough injectives, which enables us to extend some results on the unification of Hopf bimodule cohomologies of [T1,T2] to the infinite dimensional case. We also prove that the cup-product defined on these cohomologies is graded-commutative.
%U http://arxiv.org/abs/math/0207154v2