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Bibliographic Details
Main Authors: Mundinger, Konrad, Pokutta, Sebastian, Spiegel, Christoph, Zimmer, Max
Format: Preprint
Published: 2024
Subjects:
Online Access:https://arxiv.org/abs/2404.05509
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Table of Contents:
  • We present two novel six-colorings of the Euclidean plane that avoid monochromatic pairs of points at unit distance in five colors and monochromatic pairs at another specified distance $d$ in the sixth color. Such colorings have previously been known to exist for $0.41 < \sqrt{2} - 1 \le d \le 1 / \sqrt{5} < 0.45$. Our results significantly expand that range to $0.354 \le d \le 0.657$, the first improvement in 30 years. Notably, the constructions underlying this were derived by formalizing colorings suggested by a custom machine learning approach.