Shimura varieties with infinite level, and torsion in the cohomology of locally symmetric spaces
Also appears in collection : Conférences Paris Pékin Tokyo
Shimura varieties with infinite level, and torsion in the cohomology of locally symmetric spaces. We will discuss the p-adic geometry of Shimura varieties with infinite level at p: They are perfectoid spaces, and there is a new period map defined at infinite level. As an application, we will discuss some results on torsion in the cohomology of locally symmetric spaces, and in particular the existence of Galois representations in this setup.
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