$p$-adic tame Tate twists
Abstract
Recently, H\"ubner-Schmidt defined the tame site of a scheme. We define -adic tame Tate twists in the tame topology and prove some first properties. We establish a framework analogous to the Beilinson-Lichtenbaum conjectures in the tame topology for -adic tame Tate twists and tame logarithmic deRham-Witt sheaves. Both only differ from their \'etale counterpart in cohomological degrees above the weight. These cohomology groups can be analysed using the Gersten conjecture which, at least conjecturally, has a nice shape in the tame topology. We prove the Gersten conjecture for tame logarithmic deRham-Witt sheaves for curves in positive characteristic and note that the conjecture in arbitrary dimension would follow from strict -invariance.
Cite
@article{arxiv.2407.07979,
title = {$p$-adic tame Tate twists},
author = {Morten Lüders},
journal= {arXiv preprint arXiv:2407.07979},
year = {2024}
}
Comments
21 pages