1997/07/03 by Jean-Bernard Zuber, Zuber, Jean-Bernard
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #hep-th
paper · pdf · doi:10.48550/arxiv.hep-th/9707046
plain tex, 7 figures
arxiv created 1997/07/03 · arxiv updated 2009/11/30
Graphs which generalize the simple or affine Dynkin diagrams are introduced. Each diagram defines a bilinear form on a root system and thus a reflection group. We present some properties of these groups and of their natural "Coxeter element". The folding of these graphs and groups is also discussed, using the theory of C-algebras. (Proceedings of the Taniguchi Symposium Topological Field Theory, Primitive Forms and Related Topics, Kyoto Dec 1996)