edge of manifold
21John R. Stallings — John Robert Stallings is a mathematician known for his seminal contributions to geometric group theory and 3 manifold topology. Stallings is a Professor Emeritus in the Department of Mathematics and the University of California at Berkeley. [… …
22Sectional curvature — In Riemannian geometry, the sectional curvature is one of the ways to describe the curvature of Riemannian manifolds. The sectional curvature K(σp) depends on a two dimensional plane σp in the tangent space at p. It is the Gaussian curvature of… …
23List of mathematics articles (E) — NOTOC E E₇ E (mathematical constant) E function E₈ lattice E₈ manifold E∞ operad E7½ E8 investigation tool Earley parser Early stopping Earnshaw s theorem Earth mover s distance East Journal on Approximations Eastern Arabic numerals Easton s… …
24nature, philosophy of — Introduction the discipline that investigates substantive issues regarding the actual features of nature as a reality. The discussion here is divided into two parts: the philosophy of physics and the philosophy of biology. In this… …
25Ford Torino — Infobox Automobile name=Ford Torino 1970 Ford Torino Cobra SportsRoof manufacturer=Ford Motor Company production=1968 ndash;1976 class=Intermediate layout= FR layout assembly=Atlanta, Georgia Lorain, Ohio Chicago, Illinois predecessor=Ford… …
26Distributor — This article is about the engine component. For other uses, see Distributor (disambiguation). Typical distributor with distributor cap Also visible are mounting/drive shaft (bottom), vacuum advance unit (right) and capacitor (centre) A… …
27Bass–Serre theory — is a part of the mathematical subject of group theory that deals with analyzing the algebraic structure of groups acting by automorphisms on simplicial trees. The theory relates group actions on trees with decomposing groups as iterated… …
28Ford Mondeo — Manufacturer Ford Motor Company Also called Ford Contour, Mercury Mystique MK1 MK2 Mondeo only, in the United States …
29Abkürzungen/Luftfahrt/L–R — Dies ist der vierte Teil der Liste Abkürzungen/Luftfahrt. Liste der Abkürzungen Teil 1 A A Teil 2 B–D B; C; D Teil 3 E–K …
30Fundamental group — In mathematics, the fundamental group is one of the basic concepts of algebraic topology. Associated with every point of a topological space there is a fundamental group that conveys information about the 1 dimensional structure of the portion of …
