An induced subgraph S of a graph G is called a derived subgraph of G if S contains no isolated vertices. An edge e of G is said to be residual if e occurs in more than half of the derived subgraphs of G. We introduce the conjecture: Every non-empty graph contains a non-residual edge. This conjecture
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On closed sets of a directed graph
โ Scribed by A.V. Karzanov
- Publisher
- Elsevier Science
- Year
- 1984
- Weight
- 396 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0041-5553
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