Title
2-Factors in Claw-Free Graphs with Lower Bounds Cycle Lengths.
Abstract
For a graph G, we denote by δ(G) the minimum degree of G. A graph G is said to be claw-free if G has no induced subgraph isomorphic to K 1, 3. In this article, we prove that every claw-free graph G with minimum degree at least 4 has a 2-factor in which each cycle contains at least \({\big\lceil\frac{\delta(G) - 1}{2}\big\rceil}\) vertices and every 2-connected claw-free graph G with minimum degree at least 3 has a 2-factor in which each cycle contains at least δ(G) vertices. For the case where G is 2-connected, the lower bound on the length of a cycle is best possible.
Year
DOI
Venue
2015
10.1007/s00373-013-1375-z
Graphs and Combinatorics
Keywords
Field
DocType
claw free graph
Topology,Wheel graph,Discrete mathematics,Graph toughness,Combinatorics,Bound graph,Graph power,Cycle graph,Regular graph,Degree (graph theory),Factor-critical graph,Mathematics
Journal
Volume
Issue
ISSN
31
1
1435-5914
Citations 
PageRank 
References 
1
0.35
13
Authors
3
Name
Order
Citations
PageRank
Roman Cada1408.35
Shuya Chiba23512.93
Kiyoshi Yoshimoto313322.65