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self-dual configuration

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  • Configuration (geometry) — Configurations (4362) (a complete quadrangle, at left) and (6243) (a complete quadrilateral, at right). In mathematics, specifically projective geometry, a configuration in the plane consists of a finite set of points, and a finite arrangement of …   Wikipedia

  • Pappus configuration — In projective geometry, the Pappus configuration consists of a pair (( A , B , C ), ( D , E , F )) of triplets of points, which pair is located either on a pair of lines or on two sides of a conic section, with a hexagon AECDBF defined on the… …   Wikipedia

  • Möbius configuration — Example of Möbius configuration; the face planes of red tetrahedron are shown on the top of the image; the blue one on the bottom. The vertex coordinates of the red tetrahedron are: (0,0,0),(0,0,1),(0,1,0),(1,0,0). The vertex coordinates of the… …   Wikipedia

  • Face configuration — In geometry, a face configuration is notational description of a face transitive polyhedron. It represents a sequential count of the number of faces that exist at each vertex around a face.There is no single standard accepted representation, but… …   Wikipedia

  • Desargues' theorem — Perspective triangles. Corresponding sides of the triangles, when extended, meet at points on a line called the axis of perspectivity. The lines which run through corresponding vertices on the triangles meet at a point called the center of… …   Wikipedia

  • Duality (mathematics) — In mathematics, a duality, generally speaking, translates concepts, theorems or mathematical structures into other concepts, theorems or structures, in a one to one fashion, often (but not always) by means of an involution operation: if the dual… …   Wikipedia

  • Platonic solid — In geometry, a Platonic solid is a convex polyhedron that is regular, in the sense of a regular polygon. Specifically, the faces of a Platonic solid are congruent regular polygons, with the same number of faces meeting at each vertex; thus, all… …   Wikipedia

  • 24-cell — Schlegel diagram (vertices and edges) Type Convex regular 4 polytope Schläfli symbol {3,4,3} t …   Wikipedia

  • Instanton — An instanton or pseudoparticle is a notion appearing in theoretical and mathematical physics. Mathematically, a Yang Mills instanton is a self dual or anti self dual connection in a principal bundle over a four dimensional Riemannian manifold… …   Wikipedia

  • Plan projectif arguésien — Dans une approche axiomatique de la géométrie projective, un plan projectif est une structure comprenant un ensemble de points, un ensemble de droites, et une relation, dite d incidence, entre points et droites (un point est sur une droite) qui… …   Wikipédia en Français

  • Möbius–Kantor graph — Named after August Ferdinand Möbius and S. Kantor Vertices 16 …   Wikipedia

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