Models of the real projective plane

Inhaltsverzeichnis1: Some Representations of the Real Projective Plane before 1900.1.1 Closed Surfaces.1.2 The Real Projective Plane.1.3 Steiner Surfaces.2: The Boy Surface.2.1 Embedded and Immersed Surfaces.2.2 Parametrization of the Boy Surface by Three Polynomials.2.3 How to Eliminate Whitney Umbrellas.2.4 A Boy Surface of Degree Six.3: More about Immersions in the 3-dimensional Sphere.3.1 Self-Transveral Immersions of the Real Projective Plane.3.2 Classification of Immersed Projective Planes of Boy Type.3.3 The Halfway Model.Plate Index.Plates.