English

Regularity dimensions: quantifying doubling and uniform perfectness

Metric Geometry 2019-11-01 v1 Classical Analysis and ODEs

Abstract

We study the upper and lower regularity dimensions in relation to the notions of doubling and uniformly perfect. These two regularity properties are closely related which is quantified thanks to the regularity dimensions. The regularity dimensions of pushforward measures onto graphs of Brownian motion are calculated, similarly for pushforwards with respect to quasisymmetric homeomorphisms. We finish by introducing an application to Diophantine approximation in the setting of Kleinian groups.

Keywords

Cite

@article{arxiv.1910.14074,
  title  = {Regularity dimensions: quantifying doubling and uniform perfectness},
  author = {Douglas C. Howroyd},
  journal= {arXiv preprint arXiv:1910.14074},
  year   = {2019}
}

Comments

15 pages, 4 figures

R2 v1 2026-06-23T11:59:56.972Z