We gratefully acknowledge support from
the Simons Foundation and member institutions.
Full-text links:

Download:

Current browse context:

math.RT

Change to browse by:

References & Citations

Bookmark

(what is this?)
CiteULike logo BibSonomy logo Mendeley logo del.icio.us logo Digg logo Reddit logo

Mathematics > Representation Theory

Title: The integral motivic Satake equivalence for ramified groups

Abstract: We construct the geometric Satake equivalence for quasi-split reductive groups over nonarchimedean local fields, using \'etale Artin-Tate motives with $\mathbb{Z}[\frac{1}{p}]$-coefficients. We consider local fields of both equal and mixed characteristic. Along the way, we extend the work of Gaussent--Littelmann on the connection between LS galleries and MV cycles to the case of residually split reductive groups. As an application, we generalize Zhu's integral Satake isomorphism for spherical Hecke algebras to ramified groups. Moreover, for residually split groups, we define generic spherical Hecke algebras, and construct generic Satake and Bernstein isomorphisms.
Comments: Comments welcome!
Subjects: Representation Theory (math.RT); Algebraic Geometry (math.AG); Number Theory (math.NT)
Cite as: arXiv:2404.15694 [math.RT]
  (or arXiv:2404.15694v1 [math.RT] for this version)

Submission history

From: Thibaud Van Den Hove [view email]
[v1] Wed, 24 Apr 2024 07:03:46 GMT (84kb)

Link back to: arXiv, form interface, contact.