A Class of Rigid Coxeter Groups
A Class of Rigid Coxeter Groups
A Coxeter group W is said to be rigid if, given any two Coxeter systems (W, S) and (W, S′), there is an automorphism ρ: W → W such that ρ(S) = S′. The class of Coxeter systems (W, S) for which the Coxeter graph ΓS is complete and has …