Hélène Esnault: Lefschetz theorems in Arithmetic Geometry

Tid: On 2017-02-22 kl 13.15

Föreläsare: Hélène Esnault, Freie Universität, Berlin

Plats: Room 3418, KTH

We survey the existing Lefschetz theorems in presence of ramification for connections, for lisse l-adic sheaves and for F-overconvergent isocrystals. We shall motivate those theorems by Deligne's finiteness theorem and Drinfeld's companions over a finite field.
2017-02-22T13:15 2017-02-22T13:15 Hélène Esnault: Lefschetz theorems in Arithmetic Geometry Hélène Esnault: Lefschetz theorems in Arithmetic Geometry
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