Title
Polychromatic 4-coloring of guillotine subdivisions
Abstract
A polychromatic k-coloring of a plane graph G is an assignment of k colors to the vertices of G such that each face of G, except possibly for the outer face, has all k colors on its boundary. A rectangular partition is a partition of a rectangle R into a set of non-overlapping rectangles such that no four rectangles meet at a point. It was conjectured in [Y. Dinitz, M.J. Katz, R. Krakovski, Guarding rectangular partitions, in: 23rd European Workshop Computational Geometry, 2007, pp. 30-33] that every rectangular partition admits a polychromatic 4-coloring. In this note we prove the conjecture for guillotine subdivisions - a well-studied subfamily of rectangular partitions.
Year
DOI
Venue
2009
10.1016/j.ipl.2009.03.006
Inf. Process. Lett.
Keywords
Field
DocType
polychromatic 4-coloring,k color,outer face,guillotine subdivision,plane graph g,polychromatic k-coloring,y. dinitz,european workshop computational geometry,m.j. katz,rectangular partition,computational geometry,algorithms,plane graph
Discrete geometry,Discrete mathematics,Combinatorics,Vertex (geometry),Rectangle,Computational geometry,Subdivision,Partition (number theory),Conjecture,Planar graph,Mathematics
Journal
Volume
Issue
ISSN
109
13
0020-0190
Citations 
PageRank 
References 
3
0.43
7
Authors
4
Name
Order
Citations
PageRank
Elad Horev1223.75
Matthew J. Katz222519.92
Roi Krakovski3295.58
Maarten Löffler455162.87