Solutions to Penrose's ‘Road To Reality’
Chapter 8: Riemann surfaces and complex mappings

§8.1 The idea of a Riemann surface
8.1 * Riemann surface for zm/n
8.2 ** Riemann surface for (1-z4)1/2
8.3 ** Riemann surface for log z
§8.2 Conformal mappings
8.4 ** The conformal mapping 1/z
8.5 * Bilinear transformations
§8.3 The Riemann sphere
8.6 ** Stereographic projections of the Riemann sphere
8.7 ** A conformal transformation of the Riemann sphere
§8.4 The genus of a compact Riemann surface
8.8 *** Symmetries of complex tori