Homographie et perspective
Homography in ℝℙ
The real projective plane has been formalized in Isabelle/HOL by Timothy Makarios [13] and in Coq by Nicolas Magaud, Julien Narboux and Pascal Schreck [12]. Some definitions on the real projective spaces were introduced early in the Mizar Mathematical Library by Wojciech Leonczuk [9], Krzysztof Prazmowski [10] and by Wojciech Skaba [18]. In this article, we check with the Mizar system [4], some properties on the determinants and the Grassmann-Plücker relation in rank 3 [2], [1], [7], [16], [17]....
Homological transformations in four-dimensional space.
Homologies in Collineation Groups of Finite Projective Planes. II.
Homologies in Collineation Groups of Finite Projective Planes. I.
Homomorphismen projektiver Räume mit Homomorphismus
Homomorphismen projektiver Räume und Hjelmslevsche Geometrie.
Homomorphismen und Normalteiler zweiseitiger geschlitzter Inzidenzgruppen.
Homomorphismen und Pseudohomomorphismen der Ternärringe und Homomorphismen schwacher Pseudoebenen
Homomorphismen von projektiven Räumen und verallgemeinerte semilineare Abbildungen
Homomorphismen von Translationsebenen.
Homomorphisms of Free Planes.
Homomorphisms of Jordan algebras and homomorphisms of projective planes
Homomorphisms of nets of fixed degree, with singular points on the same line
Homomorphisms of projective planes over quasifields and nearfields
Horoball packings for the Lambert-cube tilings in the hyperbolic 3-space.
Horoballs in simplices and Minkowski spaces.
How many clouds cover the plane?
The plane can be covered by n + 2 clouds iff .
How round is a circle? Constructions of double and circular planar near-rings.
H-projecting in n-Dimensional Euclidean Space En