## Abstract If ${\cal C}$ is a class of oriented graphs (directed graphs without opposite arcs), then an oriented graph is a __homomorphism bound__ for ${\cal C}$ if there is a homomorphism from each graph in ${\cal C}$ to __H__. We find some necessary conditions for a graph to be a homomorphism bo
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A diagrammatic equation for oriented planar graphs
β Scribed by Razvan Gurau
- Book ID
- 116798055
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 288 KB
- Volume
- 839
- Category
- Article
- ISSN
- 0550-3213
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