A prismatic-etale comparison theorem in the semistable case
Algebraic Geometry
2025-07-14 v1 Number Theory
Abstract
Let be a complete discrete valuation field with perfect residue field, be its ring of integers. Consider a semistable -adic formal scheme over with smooth generic fiber . Du--Liu--Moon--Shimizu showed recently that the category of analytic prismatic -crystals on the absolute log prismatic site of is equivalent to the category of semistable \'etale -local systems on the adic generic fiber . In this article, we prove a comparison between the Breuil--Kisin cohomology of an analytic log prismatic -crystal on and the \'etale cohomology of its corresponding \'etale -local system. This generalizes Guo--Reneicke's prismatic--\'etale comparison for crystalline -local systems to the semi-stable case
Cite
@article{arxiv.2507.08451,
title = {A prismatic-etale comparison theorem in the semistable case},
author = {Yichao Tian},
journal= {arXiv preprint arXiv:2507.08451},
year = {2025}
}
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61 pages