Home›Browse›contractible space🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsTiếng ViệtTürkçeРусскийفارسی한국어中文日本語EntityQ230689· pop 16· linked from 132 articlescontractible spaceSign in to saveCan be continuously shrunk to a pointWikidata factsShow 1 more factmaintained by WikiProjectWikiProject MathematicsSources (3)wikidata.orgdocs.openalex.orgweb.archive.orgvia Wikidata · CC0Available in 16 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoHebrewNederlandsPolskiTürkçeUkrainianفارسی한국어via Wikidata sitelinks · CC0