Bondy and Vince proved that every graph with minimum degree at least three contains two cycles whose lengths differ by one or two, which answers a question raised by Erdo ˝s. By a different approach, we show in this paper that if G is a graph with minimum degree d(G) \ 3k for any positive integer k,
On the distribution of cycle lengths in graphs
✍ Scribed by A. Gyárfás; J. Komlós; E. Szemerédi
- Publisher
- John Wiley and Sons
- Year
- 1984
- Tongue
- English
- Weight
- 843 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0364-9024
No coin nor oath required. For personal study only.
✦ Synopsis
The set of different cycle lengths of a graph G is denoted by C(G). We study how the distribution of C(G) depends on the minimum degree of G. We prove two results indicating that C(G) is dense in some sense. These results lead to the solution of a conjecture of Erdos and Hajnal stating that for suitable positive constants a, b the following holds:
where 6(G) denotes the minimum degree of G.
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