Multivariable ($\varphi$,$\mathcal{O}_K^\times$)-modules and local-global compatibility
Number Theory
2025-06-13 v4 Representation Theory
Abstract
Let be a prime number, a finite unramified extension of and a finite extension of . Using perfectoid spaces we associate to any finite-dimensional continuous representation of over an \'etale -module over a completed localization of . We conjecture that one can also associate an \'etale -module to any smooth representation of occurring in some Hecke eigenspace of the mod cohomology of a Shimura curve, and that moreover is isomorphic (up to twist) to , where is the underlying -dimensional representation of . Using previous work of the same authors, we prove this conjecture when is semi-simple and sufficiently generic.
Cite
@article{arxiv.2211.00438,
title = {Multivariable ($\varphi$,$\mathcal{O}_K^\times$)-modules and local-global compatibility},
author = {Christophe Breuil and Florian Herzig and Yongquan Hu and Stefano Morra and Benjamin Schraen},
journal= {arXiv preprint arXiv:2211.00438},
year = {2025}
}
Comments
Minor modifications after the referee report