Reeb sphere theorem
theorem that a closed oriented connected manifold with a singular foliation having only centers is homeomorphic to the sphere and that the foliation has exactly two singularities
en-US/ˈɹib ˈsfɪɹ ˈθɪɹəm/
theorem that a closed oriented connected manifold with a singular foliation having only centers is homeomorphic to the sphere and that the foliation has exactly two singularities