Let G [XI H be the strong product of graphs G and H. We give a short proof that Kneser graphs are then used to demonstrate that this lower bound is sharp. We also prove that for every n > 2 there is an infinite sequence of pairs of graphs G and G' such that G' is not a retract of G while G' IXI K,
Retracts of strong products of graphs
✍ Scribed by W. Imrich; S. Klavžar
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 750 KB
- Volume
- 109
- Category
- Article
- ISSN
- 0012-365X
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