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SUMMARY:Profinite completion of operads and the Grothendieck-Teichmüller 
 group
DTSTART:20141107T141500
DTEND:20141107T153000
DTSTAMP:20260427T204206Z
UID:4289c191490d646facc049ad92287e9ed789cef305e4845c048a98c4
CATEGORIES:Conferences - Seminars
DESCRIPTION:Geoffroy Horel (Münster)\nI will define the category of opera
 ds in profinite spaces and construct a profinite completion functor from t
 he category of operads in spaces to the category of operads in profinite s
 paces. I will then try to explain how one can compute the group of homotop
 y automorphisms of the profinite completion of the little 2-disks operad. 
 The answer is that this group is isomorphic to the profinite Grothendieck-
 Teichmüller group. A prounipotent version of this theorem is due to Benoi
 t Fresse
LOCATION:MA 30
STATUS:CONFIRMED
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