Publication

Planar Point Sets Determine Many Pairwise Crossing Segments

János Pach, Gábor Tardos
2019
Conference paper
Abstract

We show that any set of n points in general position in the plane determines n(1-o(1)) pairwise crossing segments. The best previously known lower bound, Omega(root n), was proved more than 25 years ago by Aronov, Erdos, Goddard, Kreitman, Krugerman, Pach, and Schulman. Our proof is fully constructive, and extends to dense geometric graphs.

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