Algebra/Topology seminar

Speaker: Lance Gurney

Title: Prismatization over Z

Abstract: Recently Bhatt-Lurie and Drinfeld introduced the “stacky approach” to prismatic cohomology for p-adic schemes. I’ll explain how one can extend this construction integrally, giving a cohomology theory for schemes over Z whose p-adic completions recover prismatic cohomology and whose generic fibre recovers de Rham cohomology.