An explicit formula for a branched covering

J.A.Hillman

Abstract

We give an explicit formula for a 2-fold branched covering from \(\mathbb{CP}^2\) to \(S^4\), and relate it to other maps between quotients of \(S^2\times{S^2}\).

Keywords: branched covering, complex projective plane.

AMS Subject Classification: Primary 57M10; secondary 57N13.