English

Affine Grassmannians and the geometric Satake in mixed characteristic

Algebraic Geometry 2016-07-21 v3 Number Theory Representation Theory

Abstract

We endow the set of lattices in Q_p^n with a reasonable algebro-geometric structure. As a result, we prove the representability of affine Grassmannians and establish the geometric Satake correspondence in mixed characteristic. We also give an application of our theory to the study of Rapoport-Zink spaces.

Keywords

Cite

@article{arxiv.1407.8519,
  title  = {Affine Grassmannians and the geometric Satake in mixed characteristic},
  author = {Xinwen Zhu},
  journal= {arXiv preprint arXiv:1407.8519},
  year   = {2016}
}

Comments

63 pages. Fix a gap in the proof of Theorem A.29. A few more details added and exposition improved