Time：December 4, Wednesday, 16:00-17:00  

Title: On Recent Progress in the Overconvergence of Étale (ϕ,Γ)-Modules

Venu: Lecture Hall

Speaker: Heng Du 杜衡 (Tsinghua University)

Abstract:  Étale (ϕ,Γ)-modules are a fundamental tool in p-adic Hodge theory. The overconvergence property of these modules is a key aspect that enables the assignment of p-adic differential equations to Galois representations. In this talk, we will revisit the foundational work of Cherbonnier and Colmez and discuss recent advancements in the field. In particular, we will mention a joint work with Tong Liu that extends this result to geometric families.