Art gallery theorems and algorithms
Art gallery theorems and algorithms
Combinatorial algorithms for integrated circuit layout
Combinatorial algorithms for integrated circuit layout
A Graph-Coloring Result and Its Consequences For Polygon-Guarding Problems
SIAM Journal on Discrete Mathematics
Worst-case-optimal algorithms for guarding planar graphs and polyhedral surfaces
Computational Geometry: Theory and Applications
Polychromatic colorings of plane graphs
Proceedings of the twenty-fourth annual symposium on Computational geometry
Polychromatic colorings of bounded degree plane graphs
Journal of Graph Theory
Hi-index | 0.89 |
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.