Title
Coloring points with respect to squares
Abstract
We consider the problem of 2-coloring geometric hypergraphs. Specifically, we show that there is a constant such that any finite set of points in the plane can be 2-colored such that every axis-parallel square that contains at least points from contains points of both colors. Our proof is constructive, that is, it provides a polynomial-time algorithm for obtaining such a 2-coloring. By affine transformations this result immediately applies also when considering 2-coloring points with respect to homothets of a fixed parallelogram.
Year
DOI
Venue
2016
10.1007/s00454-017-9902-y
Discrete & Computational Geometry
Keywords
Field
DocType
Geometric hypergraph coloring,Cover-decomposability,Self-coverability,52C15 (05C15)
Affine transformation,Discrete mathematics,Combinatorics,Parallelogram,Finite set,Constructive,Constraint graph,Mathematics
Conference
Volume
Issue
ISSN
58
4
0179-5376
Citations 
PageRank 
References 
4
0.75
21
Authors
3
Name
Order
Citations
PageRank
Eyal Ackerman118819.80
Balázs Keszegh215624.36
Máté Vizer32714.06