English

Typical orbits of quadratic polynomials with a neutral fixed point: non-Brjuno type

Dynamical Systems 2022-02-09 v4 Complex Variables

Abstract

We investigate the quantitative and analytic aspects of the near-parabolic renormalization scheme introduced by Inou and Shishikura in 2006. These provide techniques to study the dynamics of some holomorphic maps of the form f(z)=e2πiαz+O(z2)f(z) = e^{2\pi i \alpha} z + \mathcal{O}(z^2), including the quadratic polynomials e2πiαz+z2e^{2\pi i \alpha} z+z^2, for some irrational values of α\alpha. The main results of the paper concern fine-scale features of the measure-theoretic attractors of these maps, and their dependence on the data. As a bi-product, we establish an optimal upper bound on the size of the maximal linearization domain in terms of the Siegel-Brjuno-Yoccoz series of α\alpha.

Keywords

Cite

@article{arxiv.1001.4030,
  title  = {Typical orbits of quadratic polynomials with a neutral fixed point: non-Brjuno type},
  author = {Davoud Cheraghi},
  journal= {arXiv preprint arXiv:1001.4030},
  year   = {2022}
}

Comments

80 pages; Corrections have been made according to referee reports. A new statement is added to the paper

R2 v1 2026-06-21T14:38:08.422Z