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arXiv 1409.6533math.NT
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p-adic Hilbert模形式的升阶

Level raising for p-adic Hilbert modular forms

James Newton

摘要:

本文将作者以前的工作推广到全实数域上定四元数代数的过收敛$p$ -adic自守形式的设定。我们证明的结果是类似于经典的“水平提升”的结果,在理论的mod $p$模形式。粗略地说,我们表明,一个过收敛的本征形,其相关的局部伽罗瓦表示在某些辅助素数$ł$是(扭曲)的直和平凡和分圆字符在于一个家庭的本征形的局部伽罗瓦表示在$ł$一般是(扭曲)的分歧扩展平凡的分圆。我们给出了一些明确的例子,$p$ -adic自守形式,我们的结果适用,并给出了一个一般家庭的例子,其存在性将遵循从反例的Leopoldt猜想全实领域。这些结果也起到了技术性的作用,在其他工作的作者的问题的局部-整体相容性的Steinberg地方的Hilbert模形式的部分重量1。

英文摘要:

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 whose associated local Galois representation at some auxiliary prime $ł$ is (a twist of) a direct sum of trivial and cyclotomic characters lies in a family of eigenforms whose local Galois representation at $ł$ 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.

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