A deterministic polynomial-time algorithm for Heilbronn's problem in three dimensions

被引:11
|
作者
Lefmann, H
Schmitt, N
机构
[1] Tech Univ Chemnitz, Fak Informat, D-09107 Chemnitz, Germany
[2] Ruhr Univ Bochum, Fak Math, Lehrstuhl Math & Informat, D-44780 Bochum, Germany
关键词
Heilbronn's triangle problem; arrangements of simplices; independent sets in hypergraphs;
D O I
10.1137/S0097539701395115
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
Heilbronn conjectured that among arbitrary n points in the two-dimensional unit square [0, 1](2), there must be three points which form a triangle of area O(1/n(2)). This conjecture was disproved by a nonconstructive argument of Komlos, Pintz, and Szemeredi [J. London Math. Soc., 25 (1982), pp. 13-24], who showed that for every n there exists a configuration of n points in the unit square [0, 1](2) where all triangles have area Omega(log n/n(2)). Here we will consider a three-dimensional analogue of this problem and show how to find deterministically in polynomial time n points in the unit cub [0, 1](3) such that the volume of very tetrahedron among these n points is Omega(log n/n(3)).
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页码:1926 / 1947
页数:22
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