Locally conjugate Galois sections
Number Theory
2023-12-14 v1 Algebraic Geometry
Abstract
We consider sections of the \'etale homotopy exact sequence of a hyperbolic curve over a number field. We prove that two sections whose restrictions to decomposition groups are conjugate on a set of valuations of density one are globally conjugate, which establishes the local-global principle for the conjugacy classes of sections. In fact, we obtain this result as a corollary of a more general property concerning sections of the \'etale homotopy exact sequence, so-called finite covering property, which we prove as our main result.
Cite
@article{arxiv.2312.08005,
title = {Locally conjugate Galois sections},
author = {Wojciech Porowski},
journal= {arXiv preprint arXiv:2312.08005},
year = {2023}
}
Comments
21 pages