标题： 广义Dynkin图和根系及其折叠 显示英文标题

标题： Generalized Dynkin diagrams and root systems and their folding

摘要： 引入了推广简单 Dynkin 图和仿射 Dynkin 图的图。每个图在根系上定义了一个双线性型，从而定义了一个反射群。我们展示了这些群及其自然“Coxeter 元素”的一些性质。此外，利用 C-代数理论讨论了这些图和群的折叠问题。（竹内 symposium proceedings {拓扑场论、原始形式及相关课题}, 京都 1996 年 12 月） 显示英文摘要

摘要： 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)