🌐EnglishEnglishDeutschEspañolPortuguêsРусский中文日本語EntityQ2506703· pop 9· linked from 28 articleswandering setAvailable in 9 languagesEspañolDeutsch中文日本語РусскийPortuguêsEsperantoUkrainianvia Wikidata sitelinks · CC0Connectionsgroup actionEntityBorel setEntityCategoriesDynamical systemsErgodic theoryLimit sets