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Narrow normal subgroups of Coxeter groups and of automorphism groups of Coxeter groups
Published 30 Nov 2022 in math.GR | (2211.16906v3)
Abstract: By definition, a group is called narrow if it does not contain a copy of a non-abelian free group. We describe the structure of finite and narrow normal subgroups in Coxeter groups and their automorphism groups.
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