|Responsables :||Z. Chatzidakis, F. Oger, F. Point|
|Email des responsables :||firstname.lastname@example.org|
|Adresse :||Salle 1013|
Pour recevoir le programme, écrivez à oger_at_math.univ-paris-diderot.fr
|Orateur(s)||Michael Wibmer - TU Graz,|
|Titre||Model theory of proalgebraic groups|
|Horaire||16:00 à 17:30|
Inspired by the model theoretic study of profinite groups, we discuss the foundations of a model theoretic approach to proalgebraic groups. Our axiomatization is based on the tannakian philosophy. Through a tensor analog of skeletal categories we are able to consider neutral tannakian categories with a fibre functor as many-sorted first order structures. The theory of a diagonalizable proalgebraic group is well understood. It is determined by the theory of the base field and the theory of its character group. This is joint work with Anand Pillay.