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PRODID:https://evenements.uqam.ca
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BEGIN:VEVENT
UID:11284@https://evenements.uqam.ca
DTSTART:20200131T120000Z
SEQUENCE:4
TRANSP:OPAQUE
DTEND:20200131T120000Z
URL:https://evenements.uqam.ca/evenements/seminaire-cirget-almost-complex-s
 tructures-on-rational-homology-spheres/11284?date=2020-01-31_11-00-00
LOCATION:UQAM - Pavillon Président-Kennedy (PK) (201\, avenue du Présiden
 t-Kennedy\, Montréal )
SUMMARY:Séminaire Cirget: «Almost Complex Structures on Rational Homology
  Spheres»
CLASS:PUBLIC
DESCRIPTION:Conférencier: Michael Albanese\, CIRGET\, UQAM\n\n\nRésumé 
 / Abstract: It is a well-known result that the only spheres which can admi
 t almost complex structures occur in dimensions two and six. We show that 
 if one instead considers rational homology spheres (manifolds with the sam
 e rational homology as a sphere)\, then the same conclusion holds: they ca
 n only admit almost complex structures indimensions two and six. However\,
  there are infinitely many six-dimensional rational homology spheres and n
 ot all of them admit almost complex structures. We will explain how to con
 struct infinitely many examples which do admit almost complex structures a
 nd infinitely many which do not.\n\n\nThis is joint work with Aleksandar M
 ilivojevic. \n\nMot-clés : Géométrie\, Topologie\, Mathématiques\n\n
CATEGORIES:Séminaire
DTSTAMP:20260409T023520Z
CREATED:20200128T142508Z
LAST-MODIFIED:20200128T150532Z
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