torsion product
51Multiplicative group of integers modulo n — In modular arithmetic the set of congruence classes relatively prime to the modulus n form a group under multiplication called the multiplicative group of integers modulo n. It is also called the group of primitive residue classes modulo n. In… …
52Impact wrench — An impact wrench (also known as an air wrench, air gun, rattle gun, torque gun) is a socket wrench power tool designed to deliver high torque output with minimal exertion by the user, by storing energy in a rotating mass, then delivering it… …
53Rational homotopy theory — In mathematics, rational homotopy theory is the study of the rational homotopy type of a space, which means roughly that one ignores all torsion in the homotopy groups. It was started by Dennis Sullivan (1977) and Daniel Quillen (1969) …
54History of Chrysler — 1936 Chrysler Airflow Series C 9 This article is about the History of Chrysler, an American automobile manufacturer. Contents 1 History …
55STN Ltd — Type Ltd Industry Computer software Founded Sheffield, England, UK (2004) Headquarters Sheffield, England, UK Key people Harold Robinso …
56Covariant derivative — In mathematics, the covariant derivative is a way of specifying a derivative along tangent vectors of a manifold. Alternatively, the covariant derivative is a way of introducing and working with a connection on a manifold by means of a… …
57Domain (ring theory) — In mathematics, especially in the area of abstract algebra known as ring theory, a domain is a ring such that ab = 0 implies that either a = 0 or b = 0.[1] That is, it is a ring which has no left or right zero divisors. (Sometimes such a ring is… …
58Small cancellation theory — In the mathematical subject of group theory, small cancellation theory studies groups given by group presentations satisfying small cancellation conditions, that is where defining relations have small overlaps with each other. It turns out that… …
59Are You There, God? It's Me, Dean — Infobox Television episode Title=Are You There, God? It s Me, Dean. Series=The Venture Bros. Season=1 Episode=9 Airdate=2 October 2004 Writer= Doc Hammer Director= Jackson Publick Caption = It s like you won the genetic freak lottery! Production …
60Darboux frame — In the differential geometry of surfaces, a Darboux frame is a natural moving frame constructed on a surface. It is the analog of the Frenet–Serret frame as applied to surface geometry. A Darboux frame exists at any non umbilic point of a surface …
