Séminaires : Séminaire Théorie des modèles et groupes

Pour recevoir le programme, écrivez à oger_at_math.univ-paris-diderot.fr
Le mardi à 10h30 en salle  1016 (Sophie Germain) - sauf les 04/11, 02/12 et 20/01-changement de salle.

https://semgrp.imj-prg.fr pour plus de renseignements.

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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.