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arxiv: 1308.0790 · v4 · pith:GXG54IXTnew · submitted 2013-08-04 · 🧮 math.AG · math.NT

On Goren-Oort stratification for quaternionic Shimura varieties

classification 🧮 math.AG math.NT
keywords quaternionicshimuravarietiesgoren-oortstratificationaboveappropriatebundle
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Let $F$ be a totally real field in which $p$ is unramified. We study the Goren-Oort stratification of the special fibers of quaternionic Shimura varieties over a place above $p$. We show that each stratum is a $(\mathbb{P}^1)^N$-bundle over other quaternionic Shimura varieties (for some appropriate $N$).

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