 Geometry of Surfaces by Nigel Hitchin (B3a course 2013)

By Nigel Hitchin.

Online text: people.maths.ox.ac.uk/~joyce/Nairobi2019/Hitchin-GeometryOfSurfaces.pdf

Cited passages: Section 3.2, Theorem 3.2 and its triangulation proof, printed pp. 38-39; Section 3.3, printed pp. 41-43: local coordinates at simple roots, two points at infinity for even polynomial degree, and ramification count.