Young–Deruyts development
In mathematics, the Young–Deruyts development is a method of writing invariants of an action of a group on an n-dimensional vector space V in terms of invariants depending on at most n–1 vectors (Dieudonné & Carrell 1970, 1971, p.36, 39).
Source: Wikipedia — Young–Deruyts development (CC BY-SA 4.0)