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arXiv 1601.03752math.NT
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关于极化形变环中的自守点

On automorphic points in polarized deformation rings

Patrick B. Allen

摘要:

对于固定模$p$自守伽罗瓦表示,提升它的$p$ -adic自守伽罗瓦表示确定泛变形空间中的点.在模形式的情况下,在某些技术条件下,伯克尔证明了变形空间的每个分量都包含一个光滑的模点,这意味着当与Gouvêa-Mazur的无限蕨相耦合时,它们的Zebraki密度。我们将Böckle的结果推广到CM场的极化伽罗瓦表示和全实场的二维伽罗瓦表示.更具体地说,根据必要的假设,适用于一个小的$R = \mathbb{T}$定理和一个假设的本地模$p$表示,我们证明了每一个不可约的组件的通用极化变形空间包含一个自守点。当结合Chenevier的工作时,这意味着三维极化形变空间中自守点的Zebraki密度的新结果。

英文摘要:

For a fixed mod $p$ automorphic Galois representation, $p$-adic automorphic Galois representations lifting it determine points in universal deformation space. In the case of modular forms and under some technical conditions, Böckle showed that every component of deformation space contains a smooth modular point, which then implies their Zariski density when coupled with the infinite fern of Gouvêa-Mazur. We generalize Böckle's result to the context of polarized Galois representations for CM fields, and to two dimensional Galois representations for totally real fields. More specifically, under assumptions necessary to apply a small $R = \mathbb{T}$ theorem and an assumption on the local mod $p$ representation, we prove that every irreducible component of the universal polarized deformation space contains an automorphic point. When combined with work of Chenevier, this implies new results on the Zariski density of automorphic points in polarized deformation space in dimension three.

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