On Reflection Subgroups of Finite Coxeter Groups
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OWP2011_06.pdf (364.6Kb)Date
2011-05-9MFO Scientific Program
Research in Pairs 2010Series
Oberwolfach Preprints;2011,06Metadata
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Abstract
Let $W$ be a finite Coxeter group. We classify the reflection subgroups of $W$ up to conjugacy and give necessary and sufficient conditions for the map that assigns to a reflection subgroup $R$ of $W$ the conjugacy class of its Coxeter elements to be injective, up to conjugacy.
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