Galois orbits of torsion points near atoral sets
Number Theory
2024-10-23 v2
Abstract
We prove that the Galois equidistribution of torsion points of the algebraic torus extends to the singular test functions of the form , where is a Laurent polynomial having algebraic coefficients that vanishes on the unit real -torus in a set whose Zariski closure in has codimension at least . Our result includes a power saving quantitative estimate of the decay rate of the equidistribution. It refines an ergodic theorem of Lind, Schmidt, and Verbitskiy, of which it also supplies a purely Diophantine proof. As an application, we confirm Ih's integrality finiteness conjecture on torsion points for a class of atoral divisors of .
Keywords
Cite
@article{arxiv.1909.06051,
title = {Galois orbits of torsion points near atoral sets},
author = {Vesselin Dimitrov and Philipp Habegger},
journal= {arXiv preprint arXiv:1909.06051},
year = {2024}
}
Comments
New reference, fixed Lemma A.3(i), various minor changes