p-adic Tate conjectures and abeloid varieties
Algebraic Geometry
2019-11-26 v2 Number Theory
Abstract
We explore Tate-type conjectures over -adic fields. We study a conjecture of Raskind that predicts the surjectivity of if is smooth and projective over a -adic field and has totally degenerate reduction. Sometimes, this is related to -adic uniformisation. For abelian varieties, Raskind's conjecture is equivalent to the question whether is surjective if and are abeloid varieties over . Using -adic Hodge theory and Fontaine's functors, we reformulate both problems into questions about the interplay of - versus -structures inside filtered -modules. Finally, we disprove all of these conjectures and questions by showing that they can fail for algebraisable abeloid surfaces.
Cite
@article{arxiv.1903.05630,
title = {p-adic Tate conjectures and abeloid varieties},
author = {Oliver Gregory and Christian Liedtke},
journal= {arXiv preprint arXiv:1903.05630},
year = {2019}
}
Comments
44 pages, final version