# U-duality

> symmetry of M-theory compactifications that includes T-duality and S-duality as subgroups; the supergravity theory U-duality group is an E-series Lie group, while stringy effects break it to a discrete subgroup

**Wikidata**: [Q4001392](https://www.wikidata.org/wiki/Q4001392)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/U-duality)  
**Source**: https://4ort.xyz/entity/u-duality


## References

1. Freebase Data Dumps. 2013