(thing) by artemis entreri Fri Feb 09 2001 at 21:22:09
A diagram used to visualize a Coxeter group, it is a labeled graph with nodes indexed by the generators of a Coxeter group and (Pi Pj) is an edge whenever Mij > 2 which is labeled with Mij, where Mij is an entry in the Coxeter matrix corresponding to the given Coxeter group.

--back to combinatorics--
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