# circular chromatic number

> rational refinement of chromatic number

**Wikidata**: [Q130442275](https://www.wikidata.org/wiki/Q130442275)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Circular_chromatic_number)  
**Source**: https://4ort.xyz/entity/circular-chromatic-number


## References

1. Circular chromatic number: a survey
2. Graph Coloring Methods