The quotient space of the complex projective plane under conjugation is a 4-sphere. (English) Zbl 0273.57019
MSC:
57S25 | Groups acting on specific manifolds |
57N15 | Topology of the Euclidean \(n\)-space, \(n\)-manifolds (\(4 \leq n \leq \infty\)) (MSC2010) |