In geometry, Boy's surface is an immersion of the real projective plane in three-dimensional space. It was discovered in 1901 by the German mathematician...

Whitney umbrella Boy's surface Cantor tree surface Homoeoid Jacob's ladder surface Loch Ness monster surface Morin surface Seashell surface Superegg Supertoroid...

Werner Boy (German: [ˈvɛɹnɐ bɔɪ]; 4 May 1879 − 6 September 1914) was a German mathematician. He was the discoverer and eponym of Boy's surface—a three-dimensional...

Steiner surfaces, including Boy's surface, the Roman surface and the cross-cap, are models of the real projective plane in E3, but only the Boy surface is...

Boy's surface (earlier used as a half-way model), in 1978. His graduate student François Apéry, in 1986, discovered another parametrization of Boy's surface...

self-intersections) in 3-space. Boy's surface is an example of an immersion. Polyhedral examples must have at least nine faces. Steiner's Roman surface is a more degenerate...

immersion of the sphere; both it and Boy's surface arise as midway models in sphere eversion. Boy's surface The Morin surface Immersed plane curves have a well-defined...

Microsoft Surface is a series of touchscreen-based personal computers, tablets, and interactive whiteboards designed and developed by Microsoft, most...

this property: that there is no plane tangent to any surface at the singularity. Boy's surface – an immersion of the projective plane without cross-caps...

Algebraic topology Alice universe Bavard's Klein bottle systolic inequality Boy's surface Stillwell 1993, p. 65, 1.2.3 The Klein Bottle. Weeks, Jeffrey (2020)...