%0 Journal Article %T Exceptional representations of quivers %A Claus Michael Ringel %J Mathematics %D 2013 %I arXiv %X Let Q be a connected directed quiver with n vertices. We show that Q is representation-infinite if and only if there do exist n isomorphism classes of exceptional modules of some fixed length at least 2. %U http://arxiv.org/abs/1312.7448v1