In this paper we present a short algebraic proof for a generalization of a formula of R. Penrose, Some applications of negative dimensional tensors, in: Combinatorial Mathematics and its Applications Welsh (ed.), Academic Press, 1971, pp. 221-244 on the number of 3-edge colorings of a plane cubic gr
The number of edge colorings with no monochromatic triangle
โ Scribed by Yuster, Raphael
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 639 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0364-9024
No coin nor oath required. For personal study only.
โฆ Synopsis
Let F(n, k) denote the maximum number of t w o edge colorings of a graph on n vertices that admit no monochromatic Kk. la complete graph on k vertices). The following results are proved: f ( n , 3) = 2Ln2/41 for all n 2 6. f ( n , k) = 2((k~2)/(2k-2)+o( 1))n'. In particular, the first result solves a conjecture of Erdos and Rothschild.
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