Heidi Goodson

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20242026

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math.NT2026

Ekedahl-Oort strata with a superspecial factor in unitary Shimura varieties

Emerald Andrews, Deewang Bhamidipati, Heidi Goodson +2

Let $k$ be an algebraically closed field of characteristic $p > 2$ and let $O_{K}$ be an imaginary quadratic order in which $p$ is inert. For any $a, b \in Z_{\geq 0}$ …

math.NT2026

On the classification of indecomposable Ekedahl-Oort strata in unitary Shimura varieties, and related Newton polygons

Emerald Andrews, Deewang Bhamidipati, Maria Fox +3

In this paper, we give a complete classification of indecomposable Ekedahl--Oort strata of Shimura varieties associated to the unitary group $GU (a, b)$ over an odd inert p…