Title
Clique coloring B1-EPG graphs.
Abstract
We consider the problem of clique coloring, that is, coloring the vertices of a given graph such that no (maximal) clique of size at least two is monocolored. It is known that interval graphs are 2-clique colorable. In this paper we prove that B1-EPG graphs (edge intersection graphs of paths on a grid, where each path has at most one bend) are 4-clique colorable. Moreover, given a B1-EPG representation of a graph, we provide a linear time algorithm that constructs a 4-clique coloring of it.
Year
DOI
Venue
2017
10.1016/j.disc.2017.01.019
Discrete Mathematics
Keywords
Field
DocType
Clique coloring,Edge intersection graphs,Paths on grids,Polynomial time algorithm
Discrete mathematics,Edge coloring,Complete coloring,Indifference graph,Combinatorics,Fractional coloring,Chordal graph,Greedy coloring,Mathematics,Split graph,Graph coloring
Journal
Volume
Issue
ISSN
340
5
0012-365X
Citations 
PageRank 
References 
3
0.40
10
Authors
3
Name
Order
Citations
PageRank
Flavia Bonomo122628.95
M. P. Mazzoleni2124.05
maya stein38115.65