English

Homoth\'eties explicites des repr\'esentations $\ell$-adiques

Number Theory 2020-09-14 v2

Abstract

We present classical and new results on the size of the subgroup of homotheties of \ell-adic representations associated to the torsion of an abelian variety. From these estimates, we derive uniform and explicit bounds for the Manin-Mumford problem.

Keywords

Cite

@article{arxiv.2006.07401,
  title  = {Homoth\'eties explicites des repr\'esentations $\ell$-adiques},
  author = {Aurélien Galateau and César Martínez},
  journal= {arXiv preprint arXiv:2006.07401},
  year   = {2020}
}

Comments

19 pages, in French. This second version uses new results by Gaudron and R\'emond on isogenies