19 novembre 2021 de 15 h 30 à 16 h 30 (heure de Montréal/HNE)
Lauréat 2021 du prix de mathématiques André-Aisenstadt
A fundamental problem in string theory is the multitude of distinct geometries which give rise to consistent solutions of the vacuum equations of motion.
One possible resolution of this "vacuum degeneracy" problem is the "fantasy" that the moduli space of string vacua is connected through the process of "geometric transitions".
I will discuss some geometric problems associated to this fantasy and their applications.