# signature

> number of positive, negative and zero eigenvalues of a metric tensor

**Wikidata**: [Q1142562](https://www.wikidata.org/wiki/Q1142562)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Metric_signature)  
**Source**: https://4ort.xyz/entity/signature-q1142562


## References

1. Freebase Data Dumps. 2013