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SUMMARY:Birational Invariants from Gromov-Witten Theory
DTSTART:20231127T093000Z
DTEND:20231127T113000Z
DTSTAMP:20260523T013700Z
UID:indico-event-10338@indico.math.cnrs.fr
CONTACT:cecile@ihes.fr
DESCRIPTION:Speakers: Maxim Kontsevich (IHES)\n\nGromov-Witten invariants 
 of a smooth projective variety give an infinite tower of cohomology classe
 s on powers of the original variety\, satisfying a beautiful system of con
 straints encoded in the notion of quantum connection.Recently Hiroshi Irit
 ani proved a result controlling the quantum connection of the blowup along
  a smooth center.The goal of the course is to introduce a new class of bir
 ational invariants based on Iritani's theorem.In particular\, one can almo
 st effortlessly prove the non-rationality of a generic cubic 4-fold.Veuill
 ez cliquer sur le lien ci-dessous afin de rejoindre le webinaire : https
 ://us02web.zoom.us/j/89102061199?pwd=TmwzNDRwYzN0Z0JjRzU3aEJETzk5QT09 Cod
 e secret : 641368 \n\nhttps://indico.math.cnrs.fr/event/10338/
LOCATION:Centre de conférences Marilyn et James Simons (IHES)
URL:https://indico.math.cnrs.fr/event/10338/
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