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SUMMARY:Pure Symmetric Automorphisms of Free Groups - James Griffin (Cambr
 idge)
DTSTART:20100514T130000Z
DTEND:20100514T140000Z
UID:TALK24889@talks.cam.ac.uk
CONTACT:Matthew Clarke
DESCRIPTION:The automorphism group of the free group on _n_ letters is a m
 uch studied object\, but there are many questions that are as yet unanswer
 ed.  The subgroup of _pure symmetric automorphisms_ consists of the maps w
 hich send each generator of the free group to a conjugate of itself.  This
  subgroup looks a lot like a right-angled Artin group (RAAG)\, so I will i
 ntroduce those.  A comparison of the relevant groups will follow and I wil
 l sketch a theory that encompasses both.
LOCATION:MR13
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