Forbidden subgraphs, hamiltonicity and closure in claw-free graphs

被引:47
作者
Brousek, J
Ryjacek, Z
Favaron, O
机构
[1] Univ W Bohemia, Dept Math, Plzen 30614, Czech Republic
[2] Univ Paris Sud, CNRS, URA 410, LRI, F-91405 Orsay, France
关键词
subgraphs; Hamiltonian; undirected graphs;
D O I
10.1016/S0012-365X(98)00334-3
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We study the stability of some classes of graphs defined in terms of forbidden subgraphs under the closure operation introduced by the second author. Using these results, we prove that every 2-connected claw-free and P-7-free, or claw-free and Z(4)-free, or claw-free and eiffel-free graph is either hamiltonian or belongs to a certain class of exceptions tall of them having connectivity 2). (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:29 / 50
页数:22
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