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Mirror image — For other uses, see Mirror image (disambiguation). Window reflection. U.S. President Barack Obama in the Oval Office 1/27/09. Official White House photo by Pete Souza … Wikipedia
Intersection of a polyhedron with a line — In general, a convex polyhedron is defined as the intersection of a finite number of halfspaces. That is, a convex polyhedron is the set of solutions of a system of inequations of the form :Ax le b. There are many problems in which it is useful… … Wikipedia
Convex polytope — A 3 dimensional convex polytope A convex polytope is a special case of a polytope, having the additional property that it is also a convex set of points in the n dimensional space Rn.[1] Some authors use the terms convex polytope and convex… … Wikipedia
Range searching — The range searching problems and data structures are a fundamental topic of computational geometry. The range searching problem finds applications not only in areas that deal with processing geometrical data (like geographical information systems … Wikipedia
Delaunay triangulation — A Delaunay triangulation in the plane with circumcircles shown In mathematics and computational geometry, a Delaunay triangulation for a set P of points in the plane is a triangulation DT(P) such that no point in P is inside the circumcircle 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
Cone (linear algebra) — In linear algebra, a (linear) cone is a subset of a vector space that is closed under multiplication by positive scalars. In other words, a subset C of a real vector space V is a cone if and only if λx belongs to C for any x in C and any positive … Wikipedia
Dessin d'enfant — In mathematics, a dessin d enfant (French for a child s drawing , plural dessins d enfants, children s drawings ) is a type of graph drawing used to study Riemann surfaces and to provide combinatorial invariants for the action of the absolute… … Wikipedia
Boris Tsirelson — Boris Semyonovich Tsirelson ( he. בוריס סמיונוביץ צירלסון, ru. Борис Семенович Цирельсон) is a Soviet Israeli mathematician and Professor of Mathematics in the Tel Aviv University in Israel.BiographyBoris Tsirelson was born in Leningrad to a… … Wikipedia
Epigraph (mathematics) — In mathematics, the epigraph of a function f : Rn→R is the set of points lying on or above its graph:: mbox{epi} f = { (x, mu) , : , x in mathbb{R}^n,, mu in mathbb{R},, mu ge f(x) } subseteq mathbb{R}^{n+1},and the strict epigraph of the… … Wikipedia