## Abstract Let __cl__(__G__) denote Ryjáček's closure of a claw‐free graph __G__. In this article, we prove the following result. Let __G__ be a 4‐connected claw‐free graph. Assume that __G__[__N__~__G__~(__T__)] is cyclically 3‐connected if __T__ is a maximal __K__~3~ in __G__ which is also maxim
Hamiltonicity and Minimum Degree in 3-connected Claw-Free Graphs
✍ Scribed by Odile Favaron; Pierre Fraisse
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 112 KB
- Volume
- 82
- Category
- Article
- ISSN
- 0095-8956
No coin nor oath required. For personal study only.
✦ Synopsis
Using Ryja c ek's closure, we prove that any 3-connected claw-free graph of order & and minimum degree $ &+38 10 is hamiltonian. This improves a theorem of Kuipers and Veldman who got the same result with the stronger hypotheses $ &+29 8 and & sufficiently large and nearly proves their conjecture saying that the result holds as soon as $ &+6 10 for & sufficiently large.
📜 SIMILAR VOLUMES
## Abstract Let __G__ be a graph and let __V__~0~ = {ν∈ __V__(__G__): __d__~__G__~(ν) = 6}. We show in this paper that: (i) if __G__ is a 6‐connected line graph and if |__V__~0~| ≤ 29 or __G__[__V__~0~] contains at most 5 vertex disjoint __K__~4~'s, then __G__ is Hamilton‐connected; (ii) every 8‐co
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## Abstract We show that if __G__ is a 4‐connected claw‐free graph in which every induced hourglass subgraph __S__ contains two non‐adjacent vertices with a common neighbor outside __S__, then __G__ is hamiltonian. This extends the fact that 4‐connected claw‐free, hourglass‐free graphs are hamilton
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