English

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.

Keywords

Cite

@article{arxiv.2312.08005,
  title  = {Locally conjugate Galois sections},
  author = {Wojciech Porowski},
  journal= {arXiv preprint arXiv:2312.08005},
  year   = {2023}
}

Comments

21 pages

R2 v1 2026-06-28T13:49:30.600Z