EntityQ967972· pop 11· linked from 36 articlesopen mapping theoremSign in to saveTheorem that holomorphic functions on complex domains are open mapsConnectionsCarl Friedrich GaussEntityLeonhard EulerEntityInternational Standard Book NumberEntitycomplex numberEntitymathematical analysisEntityreal numberEntitypointEntityBernhard RiemannEntityradiusEntityKarl WeierstraßEntityAugustin-Louis CauchyEntityintervalEntitycontinuous functionEntitycomplex analysisEntityEuler's formulaEntityimaginary numberEntitysurjective functionEntitynumber lineEntitycomplex conjugateEntityzero of a functionEntityCategoriesTheorems in complex analysis