Matthews and Sumner have proved in [12] that if G is a 2-connected claw-free graph of order n such that 6>~(n-2)/3, then G is hamiltonian. Li has shown that the bound for the minimum degree 6 can be reduced to n/4 under the additional condition that G is not in /7, where /7 is a class of graphs defi
Hamiltonicity of 2-connected claw-center independent graphs
β Scribed by Hao Li; Mei Lu; Feng Tian; Bing Wei
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 679 KB
- Volume
- 165-166
- Category
- Article
- ISSN
- 0012-365X
No coin nor oath required. For personal study only.
β¦ Synopsis
In this paper, we give the following result: Let G be a 2-connected graph of order PZ> 13 and nd2az -3, where 02 = min{d(u) + d(u): uz'.$E(G)}. If the set of claw-centers of G is independent, then either G is hamiltonian or G belongs to three classes of exceptional graphs. The bound n <202 -3 is sharp.
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