English

Fekete configuration, quantitative equidistribution and wandering critical orbits in non-archimedean dynamics

Dynamical Systems 2015-05-21 v2 Number Theory

Abstract

Let ff be a rational function of degree d>1d>1 on the projective line over a possibly non-archimedean algebraically closed field. A well-known process initiated by Brolin considers the pullbacks of points under iterates of ff, and produces an important equilibrium measure. We define the asymptotic Fekete property of pullbacks of points, which means that they mirror the equilibrium measure appropriately. As application, we obtain an error estimate of equidistribution of pullbacks of points for C1C^1-test functions in terms of the proximity of wandering critical orbits to the initial points, and show that the order is O(kdk)O(\sqrt{kd^{-k}}) upto a specific exceptional set of capacity 0 of initial points, which is contained in the set of superattracting periodic points and the omega-limit set of wandering critical points from the Julia set or the presingular domains of ff. As an application in arithmetic dynamics, together with a dynamical Diophantine approximation, these estimates recover Favre and Rivera-Letelier's quantitative equidistribution in a purely local manner.

Keywords

Cite

@article{arxiv.1106.3367,
  title  = {Fekete configuration, quantitative equidistribution and wandering critical orbits in non-archimedean dynamics},
  author = {Yûsuke Okuyama},
  journal= {arXiv preprint arXiv:1106.3367},
  year   = {2015}
}

Comments

27 pages. Final version. The title is slightly changed. To appear in Math. Z