Abstract
Let K be a totally real field and GK:=Gal(K‾/K) its absolute Galois group, where K‾ is a fixed algebraic closure of K. Let ℓ be a prime and E a finite extension of Qℓ. Let S be a finite set of finite places of K not dividing ℓ. Assume that K, S, Hodge-Tate type h and a positive integer n are fixed. In this paper, we prove that if ℓ is sufficiently large, then, for any fixed E, there are only finitely many isomorphism classes of crystalline representations r:GK→GLn(E) unramified outside S∪{v:v|ℓ}, with fixed Hodge-Tate type h, such that r|GK′ ≃⊕ri ′ for some finite totally real field extension K′ of K unramified at all places of K over ℓ, where each representation ri ′ over E is an 1-dimensional representation of GK′ or a totally odd irreducible 2-dimensional representation of GK′ with distinct Hodge-Tate numbers.
Original language | English |
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Pages (from-to) | 312-329 |
Number of pages | 18 |
Journal | Journal of Number Theory |
Volume | 209 |
DOIs | |
Publication status | Published - 2020 Apr |
Bibliographical note
Publisher Copyright:© 2019 Elsevier Inc.
Keywords
- Finiteness of Galois representations
- Potential automorphy
ASJC Scopus subject areas
- Algebra and Number Theory