Manuel Hoff - The EKOR-stratification on the Siegel modular variety with parahoric level structure

epiga:10263 - Épijournal de Géométrie Algébrique, March 7, 2025, Volume 9 - https://doi.org/10.46298/epiga.2025.10263
The EKOR-stratification on the Siegel modular variety with parahoric level structureArticle

Authors: Manuel Hoff

    We study the arithmetic geometry of the reduction modulo $p$ of the Siegel modular variety with parahoric level structure. We realize the EKOR-stratification on this variety as the fibers of a smooth morphism into an algebraic stack parametrizing homogeneously polarized chains of certain truncated displays.


    Volume: Volume 9
    Published on: March 7, 2025
    Accepted on: August 10, 2024
    Submitted on: November 7, 2022
    Keywords: Mathematics - Algebraic Geometry,14G35

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