🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPortuguêsРусский한국어中文日本語EntityQ1890389· pop 13· linked from 168 articlesconnected sumgeometric modification on manifoldsWikidata factsImageConnected sum.svgSources (3)wikidata.orgdocs.openalex.orgweb.archive.orgvia Wikidata · CC0Available in 13 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoEsperantoNederlandsUkrainianConnectionsmathematicsEntityInternational Standard Book NumberEntityCategoriesDifferential topologyGeometric topologyKnot theoryOperations on structures