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RAAG subgroups of RAAGs

Presented by: 
Karen Vogtmann University of Warwick, Cornell University
Date: 
Thursday 13th April 2017 -
11:00 to 12:00
Venue: 
INI Seminar Room 2
Abstract: 
Motivated by work of Grunewald and Lubotzky on virtual representations of Aut(F_n), we address the question of when a finite index normal subgroup of a RAAG is itself a RAAG.   Joint work with Beatrice Pozzetti.



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University of Cambridge Research Councils UK
    Clay Mathematics Institute London Mathematical Society NM Rothschild and Sons