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UID:8674@i2m.univ-amu.fr
DTSTART;TZID=Europe/Paris:20251113T110000
DTEND;TZID=Europe/Paris:20251113T120000
DTSTAMP:20250915T095003Z
URL:https://www.i2m.univ-amu.fr/evenements/tba-232/
SUMMARY:Daryl Cooper (University of California\, Santa Barbara): Universal 
 Objects for the Thurston Geometries.
DESCRIPTION:Daryl Cooper: Branched manifolds were introduced by Bob William
 s\nin his study of dynamical systems\, and generalize the notion\nof train
  tracks. Let G be one of the eight Thurston geometries.\nThere is a branch
 ed 3-manifold W(G) with a finite triangulation such that\na closed 3-manif
 old M immerses into W(G) if and only if M admits a G-structure. \nEquival
 ently there is a combinatorial characterization of those\nmanifolds that a
 dmit a G-structure.\n\nThis is joint with Priyam Patel and Leslie Mavrakis
 .
CATEGORIES:Séminaire,Géométrie et Topologie de Marseille
LOCATION:I2M Saint-Charles - Salle de séminaire\, Université Aix-Marseill
 e\, Campus Saint-Charles\, 3 Place Victor Hugo\, Marseille\, 13003\, Franc
 e
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Université Aix-Marseille\,
  Campus Saint-Charles\, 3 Place Victor Hugo\, Marseille\, 13003\, France;X
 -APPLE-RADIUS=100;X-TITLE=I2M Saint-Charles - Salle de séminaire:geo:0,0
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DTSTART:20251026T020000
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