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On the motivic fundamental group

February 1 at 14:1515:15 CET

Emil Jacobsen (Stockholm)

Abstract: I will introduce the motivic fundamental group of a smooth variety, and explain its relation to the usual fundamental group. The main result can also be phrased as follows: local systems of geometric origin are stable under extension in the category of local systems. I will also present a motivic version of a classical theorem of Hain, on Malcev completions of monodromy representations. At the end, I’ll explain some of the group/representation theoretic tools that go into these result.

Zoom Meeting-ID: 967 5163 9626

Passcode: last name of famous mathematician born in Königsberg (small letters)

Details

Date:
February 1
Time:
14:15 – 15:15 CET

Venue

Mainz, Hilbertraum 05-432