3 papers
math.AG2026
On the Lau group scheme
Vladimir Drinfeld
In a 2013 article, Eike Lau constructed a canonical morphism from the stack of -truncated Barsotti-Tate groups over to the stack of -truncated displays. He also proved…
math.AG2024
A stacky approach to crystals
Vladimir Drinfeld
Inspired by a theorem of Bhatt-Morrow-Scholze, we develop a stacky approach to crystals and isocrystals on "Frobenius-smooth" schemes over F_p . This class of schemes goes back to…
math.AG2024
On Shimurian generalizations of the stack
Vladimir Drinfeld
Let G be a smooth group scheme over equipped with a -action such that all weights of on the Lie algebra of G are not greater than 1. Let be Eike Lau's s…