On the Chow Ring of the Stack of truncated Barsotti-Tate Groups

Abstract

We determine the Chow ring of the stack of truncated displays and more generally the Chow ring of the stack of G-zips. We also investigate the pull-back morphism of the truncated display functor. From this we can determine the Chow ring of the stack of truncated Barsotti-Tate groups over a field of characteristic p up to p-torsion.

34 pages

Cited by in corpus (2)

• Tautological rings of Shimura varieties and cycle classes of Ekedahl-Oort strata
• Lifting Chern classes by means of Ekedahl-Oort strata