Suppose that n i> 2t + 2 (t/> 17). Let G be a graph with n vertices such that its complement is connected and, for all distinct non-adjacent vertices u and v, there are at least t common neighbours. Then we prove that and Furthermore, the results are sharp.
An upper bound on the number of edges of edge-coloring critical graphs with high maximum degree
โ Scribed by Lian-ying Miao; Shi-you Pang; Jian-liang Wu
- Publisher
- Elsevier Science
- Year
- 2003
- Tongue
- English
- Weight
- 100 KB
- Volume
- 271
- Category
- Article
- ISSN
- 0012-365X
No coin nor oath required. For personal study only.
โฆ Synopsis
In this paper, we prove that any edge-coloring critical graph G with maximum degree ยฟ (11 + โ 49 -24 )=2, where 6 1, has the size at least 3(|V (G)| -) + 1 if 6 7 or if ยฟ 8 and |V (G)| ยฟ 2 --4 -( + 6)=( -6), where is the minimum degree of G. It generalizes a result of Sanders and Zhao.
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