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Monochromatic equilateral triangles in the unit distance graph
Bulletin of the London Mathematical Society ( IF 0.9 ) Pub Date : 2020-07-16 , DOI: 10.1112/blms.12359
Eric Naslund 1
Affiliation  

Let χ Δ ( R n ) denote the minimum number of colors needed to color R n so that there will not be a monochromatic equilateral triangle with side length 1. Using the slice rank method, we reprove a result of Frankl and Rodl, and show that χ Δ ( R n ) grows exponentially with n . This technique substantially improves upon the best known quantitative lower bounds for χ Δ ( R n ) , and we obtain
χ Δ R n > ( 1.01446 + o ( 1 ) ) n .


中文翻译:

单位距离图中的单色等边三角形

χ Δ [R ñ 表示着色所需的最少颜色数 [R ñ 这样就不会有边长为1的单色等边三角形。使用切片秩方法,我们证明了Frankl和Rodl的结果,并证明了 χ Δ [R ñ 与成倍增长 ñ 。该技术大大改善了最著名的定量下限 χ Δ [R ñ ,我们得到
χ Δ [R ñ > 1.01446 + Ø 1个 ñ
更新日期:2020-07-16
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