involutory
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Involutory matrix — In mathematics, an involutory matrix is a matrix that is its own inverse. That is, matrix A is an involution iff A2 = I.One of the three classes of elementary matrix is involutory, namely the row interchange elementary matrix . A special case of… … Wikipedia
involutory — … Useful english dictionary
Racks and quandles — In mathematics, racks and quandles are sets with a binary operation satisfying axioms analogous to the Reidemeister moves of knot diagram manipulation.While studied primarily in a knot theoretic context, they can be viewed as algebraic… … Wikipedia
cryptology — cryptologist, n. cryptologic /krip tl oj ik/, cryptological, adj. /krip tol euh jee/, n. 1. cryptography. 2. the science and study of cryptanalysis and cryptography. [1635 45; < NL cryptologia. See CRYPTO , LOGY] * * * Introduction … Universalium
*-algebra — * ring= In mathematics, a * ring is an associative ring with a map * : A rarr; A which is an antiautomorphism, and an involution.More precisely, * is required to satisfy the following properties: * (x + y)^* = x^* + y^* * (x y)^* = y^* x^* * 1^* … Wikipedia
List of mathematics articles (I) — NOTOC Ia IA automorphism ICER Icosagon Icosahedral 120 cell Icosahedral prism Icosahedral symmetry Icosahedron Icosian Calculus Icosian game Icosidodecadodecahedron Icosidodecahedron Icositetrachoric honeycomb Icositruncated dodecadodecahedron… … Wikipedia
Collineation — In projective geometry, a collineation is a one to one and onto map (a bijection) from one projective space to another, or from a projective space to itself, such that the images of collinear points are themselves collinear. All projective linear … Wikipedia
Correlation (projective geometry) — This article is about correlation in projective geometry. For other uses, see correlation (disambiguation). A correlation is a duality (collineation from a projective space onto its dual space, taking points to hyperplanes (and vice versa) and… … Wikipedia
Greg Kuperberg — (born July 4, 1967) is an American mathematician of Polish birth known for his contributions to geometric topology, quantum algebra, and combinatorics. Kuperberg is a professor of mathematics at the University of California, Davis.Greg Kuperberg … Wikipedia
