%0 Journal Article %T Torus structure on graphs and twisted partition functions for minimal and affine models %A R. Coquereaux %A M. Huerta %J Mathematics %D 2003 %I arXiv %R 10.1016/S0393-0440(03)00056-1 %X Using the Ocneanu quantum geometry of ADE diagrams (and of other diagrams belonging to higher Coxeter-Dynkin systems), we discuss the classification of twisted partition functions for affine and minimal models in conformal field theory and study several examples associated with the WZW, Virasoro and W_{3} cases. %U http://arxiv.org/abs/hep-th/0301215v2