Virtually splitting the map from AutG to OutGReport as inadecuate



 Virtually splitting the map from AutG to OutG


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We give an elementary criterion on a group G for the map from AutG to OutG to split virtually. This criterion applies to many residually finite CAT0 groups and hyperbolic groups, and in particular to all finitely generated Coxeter groups. As a consequence the outer automorphism group of any finitely generated Coxeter group is residually finite and virtually torsion-free.



Author: Mathieu Carette

Source: https://archive.org/







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