%0 Journal Article %T On the antipode of a co-Frobenius (co)quasitriangular Hopf algebra %A Margaret Beattie %A Daniel Bulacu %J Mathematics %D 2007 %I arXiv %X We extend to the co-Frobenius case a result of Drinfeld and Radford related to the fourth power of the antipode of a finite dimensional (co)quasitriangular Hopf algebra. %U http://arxiv.org/abs/0706.0287v1