English

Limit of torsion semi-stable Galois representations with unbounded weights

Number Theory 2019-05-21 v1

Abstract

Let KK be a complete discrete valuation field of characteristic (0,p)(0, p) with perfect residue field, and let TT be an integral Zp\mathbb{Z}_p-representation of Gal(K/K)\mathrm{Gal}(\overline{K}/K). A theorem of T. Liu says that if T/pnTT/p^n T is torsion semi-stable (resp. crystalline) of uniformly bounded Hodge-Tate weights for all n1n \geq 1, then TT 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.

Keywords

Cite

@article{arxiv.1905.08020,
  title  = {Limit of torsion semi-stable Galois representations with unbounded weights},
  author = {Hui Gao},
  journal= {arXiv preprint arXiv:1905.08020},
  year   = {2019}
}

Comments

Final version. arXiv admin note: text overlap with arXiv:1606.07216