Reflection subgroups of odd-angled Coxeter groups
نویسندگان
چکیده
We give a criterion for a finitely generated odd-angled Coxeter group to have a proper finite index subgroup generated by reflections. The answer is given in terms of the least prime divisors of the exponents of the Coxeter relations.
منابع مشابه
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عنوان ژورنال:
- J. Comb. Theory, Ser. A
دوره 126 شماره
صفحات -
تاریخ انتشار 2014