设H是特征为0的代数闭域上的72维半单Hopf代数.通过对H的特征标代数的研究,证明了单H-模的维数只能是1,2,3,4,6或8.特别地,H是Frobenius型Hopf代数.另外,还证明了G(H)是非平凡的.
Let H be a semisimple Hopf algebra of dimension 72 over an algebraically closed field of characteristic zero.Based on the study of character algebra of H,this paper proves that the dimension of simple H-modules can only be 1,2,3,4,6 or 8.In particular,H is of Frobenius type.In addition,this paper proves that G(H) is not trivial.