Seminar des SFB/TRR 326 GAUS Wach modules of crystalline (φ, Γ)-modules over the Robba ring
- Date in the past
- Friday, 17 April 2026, 13:30
- INF 205, SR A
- Janine Roshardt (ETH Zürich)
Address
INF 205, SR A
Live-stream
Organizer
Prof. Dr. Otmar Venjakob
Event Type
Talk
By works of Nathalie Wach and Laurent Berger there is an equivalence of Wach modules over 𝔹⁺_{ℚₚ} and crystalline p-adic representations of the absolute Galois group over ℚₚ. Jonathan Pottharst has stated a generalization of this equivalence to crystalline (φ, Γ)-modules over the Robba ring, but no proof has appeared in the literature. In this talk, I will explain the ideas underlying this generalization and the construction of Wach modules over the positive Robba ring.