English

Large disks touching three sides of a quadrilateral

Complex Variables 2025-01-14 v2 Metric Geometry

Abstract

We show that every Jordan quadrilateral QCQ\subset\mathbb{C} contains a disk DD so that DQ\partial D\cap\partial Q contains points of three different sides of QQ. As a consequence, together with some modulus estimates from Lehto and Virtanen, we offer a short proof of the main result obtained by Chrontsios-Garitsis and Hinkkanen in 2024 and it also improves the bounds on their result.

Keywords

Cite

@article{arxiv.2405.18301,
  title  = {Large disks touching three sides of a quadrilateral},
  author = {Alex Rodriguez},
  journal= {arXiv preprint arXiv:2405.18301},
  year   = {2025}
}

Comments

10 pages, 5 figures. Final version to appear in Ann. Fenn. Math