BEGIN:VCALENDAR
VERSION:2.0
PRODID:researchseminars.org
CALSCALE:GREGORIAN
X-WR-CALNAME:researchseminars.org
BEGIN:VEVENT
SUMMARY:Johannes Nicaise (Imperial College London)
DTSTART:20210312T180000Z
DTEND:20210312T193000Z
DTSTAMP:20260423T040228Z
UID:CAGS/7
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/CAGS/7/">Tro
 pical obstructions to stable rationality</a>\nby Johannes Nicaise (Imperia
 l College London) as part of Columbia algebraic geometry seminar\n\n\nAbst
 ract\nIt is an old and thorny problem in algebraic geometry to determine w
 hich projective hypersurfaces are rational\, or\, more generally\, stably 
 rational\, meaning that they become rational when we take the product with
  a projective space of sufficiently large dimension. I will explain how on
 e can use degeneration techniques and tropical methods to find new classes
  of non-stably rational hypersurfaces and complete intersections. This tal
 k is based on joint work with John Christian Ottem.\n
LOCATION:https://researchseminars.org/talk/CAGS/7/
END:VEVENT
END:VCALENDAR