Rapoport--Zink spaces for spinor groups with special maximal parahoric level structure

Abstract

In this article, we give a concrete description of the underlying reduced subscheme of the Rapoport--Zink spaces for spinor similitude groups with special maximal parahoric (and non-hyperspecial) level structure. Moreover, we give two applications of the above result. One of which is describing the structure of the basic loci of mod $p$ reductions of Kisin--Pappas integral models of Shimura varieties for spinor similitude groups with special maximal parahoric level structure at $p$. The other is constructing a variant of the result of He, Li and Zhu, which gives a formula on the intersection multiplicity of the GGP cycles associated codimension $1$ embeddings of Rapoport--Zink spaces for spinor similitude groups.

32 pages, continued from "Notes on Rapoport--Zink spaces of Hodge type with parahoric level structure". Comments are welcome

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• Notes on Rapoport--Zink spaces of Hodge type with parahoric level structure

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• Notes on Rapoport--Zink spaces of Hodge type with parahoric level structure