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Events

Laboratory Colloquium: Javier Fresan

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Javier Fresan (Centre de Mathématiques Laurent Schwartz, École polytechnique)

The Laboratory Colloquium will take place on the 11th of October, 2019 in the room 306 at 5 pm.

Javier Fresan (Centre de Mathématiques Laurent Schwartz, École polytechnique)

Title: Nori motives over function fields and period functions.

Abstract: Around twenty years ago, Nori introduced a tannakian category of mixed motives over a subfield of the complex numbers. After recalling the basics of the theory, I will explain how to extend it to function  fields. The resulting motivic Galois group governs all algebraic relations between period functions. The talk will be based on joint work with Peter Jossen.