Title of article :
Yetter–Drinfeld modules and projections of weak Hopf algebras
Author/Authors :
J.N. Alonso ?lvarez، نويسنده , , J.M. Fern?ndez Vilaboa، نويسنده , , R. Gonz?lez Rodr?guez، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2007
Abstract :
In this paper we prove that if is a morphism of weak Hopf algebras which is split as an algebra–coalgebra morphism, then the subalgebra of coinvariants BH of B is a Hopf algebra in the category of Yetter–Drinfeld modules associated to H.
Keywords :
Yetter–Drinfeld module , weak Hopf algebra
Journal title :
Journal of Algebra
Journal title :
Journal of Algebra
