On local Galois deformation rings

We show that framed deformation rings of mod p representations of the absolute Galois group of a p-adic local field are complete intersections of expected dimension. We determine their irreducible components and show that they and their special fibres are normal and complete intersection. As an appl...

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Bibliographic Details
Main Authors: Böckle, Gebhard (Author) , Iyengar, Ashwin (Author) , Paškūnas, Vytautas (Author)
Format: Article (Journal)
Language:English
Published: 26 October 2023
In: Forum of mathematics. Pi
Year: 2023, Volume: 11, Pages: 1-54
ISSN:2050-5086
DOI:10.1017/fmp.2023.25
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1017/fmp.2023.25
Verlag, lizenzpflichtig, Volltext: https://www.cambridge.org/core/journals/forum-of-mathematics-pi/article/on-local-galois-deformation-rings/24192052AB575F076F7D40B4AFF4862E
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Author Notes:Gebhard Böckle, Ashwin Iyengar and Vytautas Paškūnas
Description
Summary:We show that framed deformation rings of mod p representations of the absolute Galois group of a p-adic local field are complete intersections of expected dimension. We determine their irreducible components and show that they and their special fibres are normal and complete intersection. As an application, we prove density results of loci with prescribed p-adic Hodge theoretic properties.
Item Description:Gesehen am 11.03.2024
Physical Description:Online Resource
ISSN:2050-5086
DOI:10.1017/fmp.2023.25