On the modularity of 2-adic potentially semi-stable deformation rings
Number Theory
2021-03-23 v3
Abstract
Using -adic local Langlands correspondence for and an ordinary theorem, we prove that the support of patched modules for quaternionic forms meet every irreducible component of the potentially semi-stable deformation ring. This gives a new proof of the Breuil-M\'{e}zard conjecture for 2-dimensional representations of the absolute Galois group of , which is new in the case a twist of an extension of the trivial character by itself. As a consequence, a local restriction in Pa\v{s}k\=unas' proof of Fontaine-Mazur conjecture is removed.
Cite
@article{arxiv.1908.06174,
title = {On the modularity of 2-adic potentially semi-stable deformation rings},
author = {Shen-Ning Tung},
journal= {arXiv preprint arXiv:1908.06174},
year = {2021}
}
Comments
Final version