# Hilbert's eleventh problem

> Classify quadratic forms over algebraic number fields

**Wikidata**: [Q5761146](https://www.wikidata.org/wiki/Q5761146)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Hilbert's_eleventh_problem)  
**Source**: https://4ort.xyz/entity/hilbert-s-eleventh-problem