🌐EnglishEnglishDeutschEspañolFrançaisItalianoРусский한국어中文日本語EntityQ3518152· pop 5· linked from 13 articlesCotton tensorAlso known as Cotton–York tensorrank-3 tensor defined for a 3d (pseudo-)Riemannian manifold which measures the degree to which it fails to be conformally flatAvailable in 5 languagesFrançais日本語РусскийUkrainianvia Wikidata sitelinks · CC0Connectionsnecessity and sufficiencyEntityLuther P. EisenhartEntityCategoriesRiemannian geometryTensorsTensors in general relativity