Limit of torsion semi-stable Galois representations with unbounded weights

Hui Gao

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arXiv · 1905.08020

Limit of torsion semi-stable Galois representations with unbounded weights

Hui Gao

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Abstract

Let $K$ be a complete discrete valuation field of characteristic $(0, p)$ with perfect residue field, and let $T$ be an integral $\mathbb{Z}_p$-representation of $\mathrm{Gal}(\overline{K}/K)$. A theorem of T. Liu says that if $T/p^n T$ is torsion semi-stable (resp. crystalline) of uniformly bounded Hodge-Tate weights for all $n \geq 1$, then $T$ is also semi-stable (resp. crystalline). In this note, we show that we can relax the condition of "uniformly bounded Hodge-Tate weights" to an unbounded (log-)growth condition.

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Hui Gao. 2019-05-20. Limit of torsion semi-stable Galois representations with unbounded weights. https://arxiv.org/abs/1905.08020

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