English

Hodge-Tate prismatic crystals and Sen theory

Number Theory 2023-11-15 v3 Algebraic Geometry

Abstract

Let KK be a mixed characteristic complete discrete valuation field with perfect residue field, and let K/KK_\infty/K be a Kummer tower extension by adjoining a compatible system of pp-power roots of a chosen uniformizer. We use this Kummer tower to reconstruct Sen theory which classically is obtained using the cyclotomic tower. Using this Sen theory over the Kummer tower, we prove a conjecture of Min-Wang which predicts that Hodge-Tate prismatic crystals are determined by the Sen operator; this implies that the category of (rational) Hodge-Tate prismatic crystals is equivalent to the category of nearly Hodge-Tate representations.

Keywords

Cite

@article{arxiv.2201.10136,
  title  = {Hodge-Tate prismatic crystals and Sen theory},
  author = {Hui Gao},
  journal= {arXiv preprint arXiv:2201.10136},
  year   = {2023}
}

Comments

All results in this preprint are now contained (as a subset) in the preprint 2311.07024 (which uses same title as this preprint). Please read that preprint instead. We apologize for confusions