On a graph of O'Keefe and wong
β Scribed by T. Ito
- Publisher
- John Wiley and Sons
- Year
- 1981
- Tongue
- English
- Weight
- 310 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0364-9024
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstract
The graph of O'Keefe and Wong, with valency 7, girth 6, and 90 vertices, is constructed as a 3βfold covering graph, and it is shown that there is a unique covering graph with these properties.
π SIMILAR VOLUMES
## Abstract With the aid of a computer. we give a regular graph of girth 6 and valency 7, which has 90 vertices and show that this is the unique smallest graph with these properties.
## dedicated to professor w. t. tutte on the occasion of his eightieth birtday It is known that the chromatic number of a graph G=(V, E) with V= [1, 2, ..., n] exceeds k iff the graph polynomial f G => ij # E, i<j (x i &x j ) lies in certain ideals. We describe a short proof of this result, using
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