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arXiv · 1403.1288

Computational search of small point sets with small rectilinear crossing number

Ruy Fabila-Monroy·Jorge López
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Abstract

Let $\crs(K_n)$ be the minimum number of crossings over all rectilinear drawings of the complete graph on $n$ vertices on the plane. In this paper we prove that $\crs(K_n) < 0.380473\binom{n}{4}+Θ(n^3)$; improving thus on the previous best known upper bound. This is done by obtaining new rectilinear drawings of $K_n$ for small values of $n$, and then using known constructions to obtain arbitrarily large good drawings from smaller ones. The "small" sets where found using a simple heuristic detailed in this paper.

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BibTeXRIS

Ruy Fabila-Monroy, Jorge López. 2014-03-05. Computational search of small point sets with small rectilinear crossing number. https://arxiv.org/abs/1403.1288

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