Graph Quantum Groups
arXiv:hep-th/9312177
Abstract
We define a new mathematical structure ( graph quantum group) which combines the tower of algebras associated with a graph and the structure of a Hopf algebra {\cal A}. In this structure Ocneanu's string operators become Hopf algebra intertwiners. We present some examples of graph quantum groups.
13 pages, latex (use the macro epic.sty available from hepth)