# Van der Corput inequality

> inequality on involving a unit-norm vector in for some inner product space

**Wikidata**: [Q30716039](https://www.wikidata.org/wiki/Q30716039)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Van_der_Corput_inequality)  
**Source**: https://4ort.xyz/entity/van-der-corput-inequality