Title
Characterization of Line-Consistent Signed Graphs
Abstract
The line graph of a graph with signed edges carries vertex signs. A vertex-signed graph is consistent if every circle (cycle, circuit) has positive vertex-sign product. Acharya, Acharya, and Sinha recently characterized line-consistent signed graphs, i.e., edge-signed graphs whose line graphs, with the naturally induced vertex signature, are consistent. Their proof applies Hoede's relatively difficult characterization of consistent vertex-signed graphs. We give a simple proof that does not depend on Hoede's theorem as well as a structural description of line-consistent signed graphs.
Year
DOI
Venue
2015
10.7151/dmgt.1825
DISCUSSIONES MATHEMATICAE GRAPH THEORY
Keywords
Field
DocType
line-consistent signed graph,line graph,consistent vertex-signed graph,consistent marked graph
Block graph,Discrete mathematics,Outerplanar graph,Combinatorics,Comparability graph,Line graph,Pathwidth,Symmetric graph,Universal graph,Mathematics,Planar graph
Journal
Volume
Issue
ISSN
35
3
1234-3099
Citations 
PageRank 
References 
0
0.34
4
Authors
2
Name
Order
Citations
PageRank
Daniel C. Slilaty1236.62
T. Zaslavsky229756.67