Fundamental groups in arithmetic geometry

par Prof. Naoya UMEZAKI (University of Tokyo & IHÉS)

mardi 5 nov. 2013, 15:30 → 16:00 Europe/Paris

Amphitéâtre Léon Motchane (IHES)

I will introduce the notion of fundamental groups and etale sheaves at a very elementary level. These are generalizations of the classical Galois theory and the usual fundamental groups. Also I will discuss certain problems on ramification of sheaves and degeneration of varieties.