BEGIN:VCALENDAR
VERSION:2.0
PRODID:researchseminars.org
CALSCALE:GREGORIAN
X-WR-CALNAME:researchseminars.org
BEGIN:VEVENT
SUMMARY:Marco Golla (University of Nantes)
DTSTART:20211029T150000Z
DTEND:20211029T161500Z
DTSTAMP:20260423T005708Z
UID:CIRGET/47
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/CIRGET/47/">
 3-manifolds that bound no definite 4-manifold</a>\nby Marco Golla (Univers
 ity of Nantes) as part of CRM - Séminaire du CIRGET / Géométrie et Topo
 logie\n\n\nAbstract\nAll 3-manifolds bound 4-manifolds\, and many construc
 tions of 3-manifolds automatically come with a 4-manifold bounding it. Oft
 entimes these 4-manifolds have definite intersection form. Using Heegaard 
 Floer correction terms and an analysis of short characteristic covectors i
 n bimodular lattices\, we give an obstruction for a 3-manifold to bound a 
 definite 4-manifold\, and produce some concrete examples. This is joint wo
 rk with Kyle Larson.\n
LOCATION:https://researchseminars.org/talk/CIRGET/47/
END:VEVENT
END:VCALENDAR