🌐EnglishEnglishDeutschEspañolFrançaisPortuguêsРусский한국어中文日本語EntityQ2602722· pop 9· linked from 183 articlesgroup ringfree module and at the same time a ringAvailable in 9 languagesFrançais中文日本語РусскийCzechHebrewUkrainian한국어via Wikidata sitelinks · CC0Connectionsalgebra over a fieldEntityvector spaceEntityCategoriesHarmonic analysisRepresentation theory of groupsRing theory