Title
Homomorphisms of signed planar graphs.
Abstract
Signed graphs are studied since the middle of the last century. Recently, the notion of homomorphism of signed graphs has been introduced since this notion captures a number of well known conjectures which can be reformulated using the definitions of signed homomorphism. In this paper, we introduce and study the properties of some target graphs for signed homomorphism. Using these properties, we obtain upper bounds on the signed chromatic numbers of graphs with bounded acyclic chromatic number and of signed planar graphs with given girth.
Year
Venue
Field
2014
CoRR
Graph,Discrete mathematics,Indifference graph,Combinatorics,Chromatic scale,Chordal graph,Homomorphism,Mathematics,Planar graph,Bounded function
DocType
Volume
Citations 
Journal
abs/1401.3308
4
PageRank 
References 
Authors
0.47
0
3
Name
Order
Citations
PageRank
Pascal Ochem125836.91
Alexandre Pinlou216720.47
Sagnik Sen32113.13