Home›Browse›exotic sphere🌐EnglishEnglishDeutschFrançaisNederlandsPortuguêsРусский한국어日本語EntityQ3105146· pop 7· linked from 68 articlesexotic sphereSign in to savesmooth manifold that is homeomorphic but not diffeomorphic to a sphereAvailable in 7 languagesFrançaisDeutschРусскийNederlandsUkrainian한국어via Wikidata sitelinks · CC0