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Globally realizable components of local deformation rings

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arxiv 1807.03529 v3 pith:ULNGQVSW submitted 2018-07-10 math.NT

classification math.NT
keywords potentiallycomponentsdeformationgaloisgloballylocalrealizablerings
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Let n be either 2, or an odd integer greater than 1, and fix a prime p > 2(n + 1). Under standard "adequate image" assumptions, we show that the set of components of n-dimensional p-adic potentially semistable local Galois deformation rings that are seen by potentially automorphic compatible systems of polarizable Galois representations over some CM field is independent of the particular global situation. We also (under the same assumption on n) improve on the main potential automorphy result of [BLGGT14b], replacing "potentially diagonalizable" by "potentially globally realizable".

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Lifting $G$-irreducible but $\mathrm{GL}_n$-reducible Galois representations

    math.NT 2019-08 accept novelty 6.0 of 10

    For every even N at least 6, the paper produces infinitely many SO_{N+1}-valued residual Galois representations that are SO_{N+1}-irreducible but GL_{N+1}-reducible, each with a geometric lift of Zariski-dense image.

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