🌐EnglishEnglishPolskiPortuguêsРусский한국어中文日本語EntityQ2895315· pop 5· linked from 45 articlesvon Neumann regular ringAlso known as absolutely flat ringrings admitting weak inversesAvailable in 5 languages日本語HebrewPolski한국어via Wikidata sitelinks · CC0ConnectionsmoduleEntitydivision ringEntityCategoriesJohn von NeumannRing theory