An Improved Bound for Weak Epsilon-Nets in the Plane
An Improved Bound for Weak Epsilon-Nets in the Plane
复制标题
平面上弱 Epsilon 网的改进界限
DOI:
10.1145/3555985
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Natan Rubin
中科院分区:
文献类型:
--
作者:
Natan Rubin
We show that for any finite point set P in the plane and ε>0 there exist O(1/ε^3/2+γ) points, for arbitrary small γ>0, that pierce every convex set K with |K∩ P|≥ ε |P|. This is the first improvement of the bound of O(1)ε^2) that was obtained in 1992 by Alon, Bárány, Füredi and Kleitman for general point sets in the plane.