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SUMMARY:The isomorphism problem for Artin groups.  - Nicolas Vaskou (Herio
 t-Watt University)
DTSTART:20220218T134500Z
DTEND:20220218T144500Z
UID:TALK170504@talks.cam.ac.uk
CONTACT:76015
DESCRIPTION:An Artin group is a kind of group defined by a simplicial grap
 h called its defining graph. The isomorphism problem is that of determinin
 g which defining graphs give rise to isomorphic Artin groups. In this talk
  we will show how to solve the isomorphism problem for a large class of Ar
 tin groups. Our method relies on reconstructing the Deligne complex in a p
 urely algebraic way\, which also allows to recover a precise description o
 f the automorphism group of the Artin group.
LOCATION:MR13
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