Level raising for p-adic Hilbert modular forms
File(s)oct2015rev.pdf (454.13 KB)
Accepted version
Author(s)
Newton, JJM
Type
Journal Article
Abstract
This paper generalises previous work of the author to the setting of overconvergent p-adic automorphic forms for a definite quaternion algebra over a totally real field. We prove results which are analogues of classical ‘level raising’ results in the theory of mod p modular forms. Roughly speaking, we show that an overconvergent eigenform of finite slope whose associated local Galois representation at some auxiliary prime l∤p is (a twist of) a direct sum of trivial and cyclotomic characters lies in a family of eigenforms whose local Galois representation at l is generically (a twist of) a ramified extension of trivial by cyclotomic.
We give some explicit examples of p-adic automorphic forms to which our results apply, and give a general family of examples whose existence would follow from counterexamples to the Leopoldt conjecture for totally real fields.
These results also play a technical role in other work of the author on the problem of local–global compatibility at Steinberg places for Hilbert modular forms of partial weight one.
We give some explicit examples of p-adic automorphic forms to which our results apply, and give a general family of examples whose existence would follow from counterexamples to the Leopoldt conjecture for totally real fields.
These results also play a technical role in other work of the author on the problem of local–global compatibility at Steinberg places for Hilbert modular forms of partial weight one.
Date Acceptance
2015-11-06
Citation
Journal de Theorie des Nombres de Bordeaux, 28 (3), pp.621-653
ISSN
1246-7405
Publisher
Universite de Bordeaux
Start Page
621
End Page
653
Journal / Book Title
Journal de Theorie des Nombres de Bordeaux
Volume
28
Issue
3
Copyright Statement
© Centre Mersenne, Société arithmétique de Bordeaux, and the authors
Subjects
0101 Pure Mathematics
Publication Status
Published
Date Publish Online
2017-01-02