Any two-coloring of the plane contains monochromatic 3-term arithmetic progressions
arXiv:2402.14197 · doi:10.1007/s00493-024-00122-2
Abstract
A conjecture of Erdős, Graham, Montgomery, Rothschild, Spencer and Straus states that, with the exception of equilateral triangles, any two-coloring of the plane will have a monochromatic congruent copy of every three-point configuration. This conjecture is known only for special classes of configurations. In this manuscript, we confirm one of the most natural open cases; that is, every two-coloring of the plane admits a monochromatic congruent copy of any -term arithmetic progression.
13 pages, revised based on referee comments