Title
Closure concept for 2-factors in claw-free graphs
Abstract
We introduce a closure concept for 2-factors in claw-free graphs that generalizes the closure introduced by the first author. The 2-factor closure of a graph is uniquely determined and the closure operation turns a claw-free graph into the line graph of a graph containing no cycles of length at most 5 and no cycles of length 6 satisfying a certain condition. A graph has a 2-factor if and only if its closure has a 2-factor; however, the closure operation preserves neither the minimum number of components of a 2-factor nor the hamiltonicity or nonhamiltonicity of a graph.
Year
DOI
Venue
2010
10.1016/j.disc.2010.02.004
Discrete Mathematics
Keywords
Field
DocType
2-factor,closure,claw-free graph,dominating system,line graph,closure operator,claw free graph,satisfiability
Block graph,Discrete mathematics,Combinatorics,Line graph,Vertex-transitive graph,Cubic graph,Null graph,Symmetric graph,Mathematics,Voltage graph,Complement graph
Journal
Volume
Issue
ISSN
310
10-11
Discrete Mathematics
Citations 
PageRank 
References 
3
0.44
8
Authors
3
Name
Order
Citations
PageRank
Zdeněk Ryjáček143438.43
Liming Xiong210916.30
Kiyoshi Yoshimoto313322.65