A group generated by the elements for , ..., subject to
where are the elements of a Coxeter Matrix. Coxeter used the Notation for the
Coxeter group generated by the nodes of a Y-shaped Coxeter-Dynkin Diagram whose three arms have , , and
Edges. A Coxeter group of this form is finite Iff
See also Bimonster
References
Arnold, V. I. ``Snake Calculus and Combinatorics of Bernoulli, Euler, and Springer Numbers for Coxeter Groups.''
Russian Math. Surveys 47, 3-45, 1992.
© 1996-9 Eric W. Weisstein
1999-05-25