Joint IAS/PU Arithmetic Geometry
Frobenius Lifting and a Geometric Theory of Companion Forms
We describe the obstruction to lift Frobenius on certain Shimura varieties and apply this to the theory of companion forms for classical modular forms (Gross, Coleman-Voloch, Faltings-Jordan) and also in higher dimension.
Date & Time
December 08, 2025 | 3:30pm – 4:30pm
Location
Simonyi 101 and Remote AccessSpeakers
Vincent Pilloni, Université Paris-Saclay
Event Series
Categories
Notes
Zoom Meeting ID: 842 7792 2534
Password hint: The Grothendieck prime in binary
Video link: https://www.ias.edu/video/frobenius-lifting-and-geometric-theory-compan…