Research

I am currently a postdoctoral researcher at Stockholm University, working broadly in Arithmetic Geometry. My current research focuses on intersection theory on Shimura varieties in positive characteristic and the geometry of Zip period maps. Contact details: cooper.simonjohn(at)gmail(dot)com.

Publications

Tautological Rings of Hilbert Modular Varieties

Math. Z. 308(13), 2024

Available here

Preprints

Pushforward of Siegel Flag Varieties in the Chow Ring

Submitted, 2024

Arxiv

Grothendieck Group of the Stack of G-Zips

Preprint, 2024

Arxiv

(with Wushi Goldring) Hodge-Chern Classes and Strata-Effectivity in Tautological Rings

Preprint, 2024

Arxiv