Home›Browse›tenseur de Bach🌐FrançaisEnglishFrançaisItalianoPortuguêsРусскийEntityQ4454675· pop 5· linked from 5 articlestenseur de BachSign in to savetrace-free tensor of rank 2 which is conformally invariant in four dimensionsAvailable in 5 languagesРусскийPortuguêsItalianoUkrainianvia Wikidata sitelinks · CC0