Home›Browse›Bach tensor🌐EnglishEnglishFrançaisItalianoPortuguêsРусскийEntityQ4454675· pop 5· linked from 5 articlesBach tensorSign in to savetrace-free tensor of rank 2 which is conformally invariant in four dimensionsAvailable in 5 languagesРусскийPortuguêsItalianoUkrainianvia Wikidata sitelinks · CC0