English

The $\mathrm{GL}_4$ Rapoport-Zink Space

Number Theory 2018-11-07 v1 Algebraic Geometry

Abstract

We give a description of the GL4\mathrm{GL}_4 Rapoport-Zink space, including the connected components, irreducible components, intersection behavior of the irreducible components, and Ekedahl-Oort stratification. As an application of this, we also give a description of the supersingular locus of the Shimura variety for the group GU(2,2)\mathrm{GU}(2,2) over a prime split in the relevant imaginary quadratic field.

Cite

@article{arxiv.1811.02040,
  title  = {The $\mathrm{GL}_4$ Rapoport-Zink Space},
  author = {Maria Fox},
  journal= {arXiv preprint arXiv:1811.02040},
  year   = {2018}
}
R2 v1 2026-06-23T05:05:16.224Z