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» Hamiltonian Connected Line Graphs
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JCT
2006
64views more  JCT 2006»
14 years 10 months ago
Every 3-connected, essentially 11-connected line graph is Hamiltonian
Thomassen conjectured that every 4-connected line graph is hamiltonian. A vertex cut X of G is essential if G-X has at least two nontrivial components. We prove that every 3-conne...
Hong-Jian Lai, Yehong Shao, Hehui Wu, Ju Zhou
ICCS
2007
Springer
15 years 2 months ago
Hamiltonian Connected Line Graphs
1 A graph G is hamiltonian-connected if any two of its vertices are connected by a Hamilton2 path (a path including every vertex of G); and G is s-hamiltonian-connected if the del...
Dengxin Li, Hong-Jian Lai, Yehong Shao, Mingquan Z...
GC
2007
Springer
14 years 10 months ago
An s -Hamiltonian Line Graph Problem
For an integer k > 0, a graph G is k-triangular if every edge of G lies in at least k distinct 3-cycles of G. In (J Graph Theory 11:399–407 (1987)), Broersma and Veldman propo...
Zhi-Hong Chen, Hong-Jian Lai, Wai-Chee Shiu, Deyin...
DM
2008
110views more  DM 2008»
14 years 10 months ago
Contractible subgraphs, Thomassen's conjecture and the dominating cycle conjecture for snarks
We show that the conjectures by Matthews and Sumner (every 4-connected claw-free graph is hamiltonian), by Thomassen (every 4-connected line graph is hamiltonian) and by Fleischne...
Hajo Broersma, Gasper Fijavz, Tomás Kaiser,...
ARSCOM
2008
98views more  ARSCOM 2008»
14 years 10 months ago
New Sufficient Conditions for s-Hamiltonian Graphs and s-Hamiltonian Connected Graphs
Yan Jin, Kewen Zhao, Hong-Jian Lai, Ju Zhou