Extending cycles in directed graphs (Q580359)
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scientific article; zbMATH DE number 4016927
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Extending cycles in directed graphs |
scientific article; zbMATH DE number 4016927 |
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Extending cycles in directed graphs (English)
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1989
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A digraph D is called cycle extendable if it contains at least one cycle and the vertices of each nonhamiltonian cycle are contained in a cycle of length one greater. Strong tournaments and regular tournaments which are cycle extendable are characterized. Best possible sufficient conditions for a digraph to be cycle extendable are found involving the number of arcs, minimum total degree and minimum indegree and outdegree.
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digraph
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cycle extendable
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strong tournaments
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regular tournaments
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0.9353435
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0.89991707
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0.8913918
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