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CATEGORIES:Geometric Group Theory (GGT) Seminar
SUMMARY:The isomorphism problem for Artin groups. - Nicol
as Vaskou (Heriot-Watt University)
DTSTART;TZID=Europe/London:20220218T134500
DTEND;TZID=Europe/London:20220218T144500
UID:TALK170504AThttp://talks.cam.ac.uk
URL:http://talks.cam.ac.uk/talk/index/170504
DESCRIPTION:An Artin group is a kind of group defined by a sim
plicial graph called its defining graph. The isomo
rphism problem is that of determining which defini
ng graphs give rise to isomorphic Artin groups. In
this talk we will show how to solve the isomorphi
sm problem for a large class of Artin groups. Our
method relies on reconstructing the Deligne comple
x in a purely algebraic way\, which also allows to
recover a precise description of the automorphism
group of the Artin group.
LOCATION:MR13
CONTACT:
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