Home›Homotopy theory›ホップ不変量🌐日本語EnglishSvenskaРусский한국어中文日本語EntityQ5900509· pop 5· linked from 19 articlesホップ不変量Homotopy invariant of maps between spheresWikidata factsShow 1 more facttime of discovery or invention1931-00-00via Wikidata · CC0Available in 5 languages中文РусскийSvenska한국어via Wikidata sitelinks · CC0ConnectionshomotopyEntitymathematicsEntityCategoriesHomotopy theory