%0 Journal Article
%T On pointed Hopf algebras associated with the symmetric groups
%A Nicol¨¢s Andruskiewitsch
%A Fernando Fantino
%A Shouchuan Zhang
%J Mathematics
%D 2008
%I arXiv
%X It is an important open problem whether the dimension of the Nichols algebra B(O,\rho) is finite when O is the class of the transpositions and \rho is the sign representation, with m>= 6. In the present paper, we discard most of the other conjugacy classes showing that very few pairs (O,\rho) might give rise to finite-dimensional Nichols algebras.
%U http://arxiv.org/abs/0807.2406v2