Home›Characteristic classes›Pontryagin class🌐EnglishEnglishDeutschEspañolFrançaisPortuguêsSvenskaРусский한국어中文日本語EntityQ40007· pop 9· linked from 48 articlesPontryagin classcharacteristic class defined for real vector bundlesAvailable in 9 languagesFrançaisDeutsch日本語РусскийPortuguêsSvenskaUkrainian한국어via Wikidata sitelinks · CC0ConnectionsStiefel–Whitney classEntitycohomologyEntityCategoriesCharacteristic classesDifferential topology