Let G be a graph on n vertices. We show that if the total number of isomorphism types of induced subgraphs of G is at most &II', where E < lo-\*', then either G or its complement contain an independent set on at least (1 -4e)n vertices. This settles a problem of Erdiis and Hajnal.
On the number of distinct induced subgraphs of a graph
✍ Scribed by P. Erdős; A. Hajnal
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 582 KB
- Volume
- 75
- Category
- Article
- ISSN
- 0012-365X
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