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On the conjecture of Ihara/Oda-Matsumoto

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On the conjecture of Ihara/Oda-Matsumoto

Following the spirit of Grothendieck’s Esquisse d’un Programme, the Ihara/Oda-Matsumoto conjecture predicted a combinatorial description of the absolute Galois group of Q based on its action on geometric fundamental groups of varieties. This conjecture was resolved in the 90’s by Pop using anabelian techniques. In this talk, I will discuss the proof of stronger variant of this conjecture, using mod-ell two-step nilpotent quotients, while highlighting some connections with model theory.

- Séminaire Géométrie et théorie des modèles

Détails :

Orateur / Oratrice : Adam Topaz
Date : 15 décembre 2017
Horaire : 11h00 - 11h00
Lieu : ENS Salle W