The Gray graph is a unit-distance graph
Leah Wrenn Berman, Gábor Gévay, Tomaž Pisanski · The Art of Discrete and Applied Mathematics · 2025
The Art of Discrete and Applied Mathematics (ADAM) is a modern, dynamic, platinum open access, electronic journal that will publish high-quality articles of arbitrary length in contemporary discrete and applied mathematics in which neither the authors nor the readers incur any costs.