# raising and lowering indices

> mathematical operations relating different types of tensor

**Wikidata**: [Q2436203](https://www.wikidata.org/wiki/Q2436203)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Raising_and_lowering_indices)  
**Source**: https://4ort.xyz/entity/raising-and-lowering-indices


## References

1. Freebase Data Dumps. 2013