publiée le 15 avril 2026
Les nombres p-adiques et le théorème de Skolem-Mahler-Lech
De Vlerë Mehmeti
Cohomological obstructions to local-global principles - lecture 1
Apparaît dans les collections : Research School, Méthodes géométriques et analytiques pour les points rationnels / Geometric and Analytic Methods for Rational Points
Hasse proved that for quadrics the existence of rational points reduces to the existence of solutions over local fields. In many cases, cohomological constructions provide obstructions to such a local to global principle. The objective of these lectures is to give an introduction to these cohomological tools.
