Paper 3, Section II, I

Algebraic Geometry
Part II, 2012

Let XP2(C)X \subset \mathbf{P}^{2}(\mathbf{C}) be the projective closure of the affine curve y3=x4+1y^{3}=x^{4}+1. Let ω\omega denote the differential dx/y2d x / y^{2}. Show that XX is smooth, and compute vp(ω)v_{p}(\omega) for all pXp \in X.

Calculate the genus of XX.