🌐EnglishEnglishDeutschFrançaisItalianoNederlandsPortuguêsSvenskaTürkçeРусский中文日本語EntityQ967972· pop 11· linked from 36 articlesopen mapping theoremTheorem that holomorphic functions on complex domains are open mapsAvailable in 10 languagesFrançaisDeutsch中文日本語РусскийItalianoSvenskaTürkçeUkrainianConnectionsCarl Friedrich GaussEntityLeonhard EulerEntityCategoriesTheorems in complex analysis