geodesic ball

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• geodesic dome — noun (C) technical a large building shaped like a ball, made from small flat pieces that are connected together to form polygons …   Longman dictionary of contemporary English

• Times Square Ball — Ball drop redirects here. For a listing of other ball drops or raisings around the world, see List of objects dropped on New Year s Eve. The Centennial version of the ball as seen at Macy s in Herald Square in preparation for the 2008 drop. The… …   Wikipedia

• Complex geodesic — In mathematics, a complex geodesic is a generalization of the notion of geodesic to complex spaces. Definition Let (X, || ||) be a complex Banach space and let B be the open unit ball in X. Let Δ denote the open unit disc in the complex …   Wikipedia

• Football (ball) — A football is an inflated ball used to play one of the various sports known as football. The first balls were made of natural materials, such as an inflated pig baldder, sometimes inside a leather cover. (This has given rise to the US slang term… …   Wikipedia

• buck|y|ball — «BUHK ee BL», noun. Chemistry. a highly stable molecule consisting of sixty carbon atoms arranged as interlocking pentagons and hexagons: »The molecular structure of buckyballs is so radically different that researchers hope this third form of… …   Useful english dictionary

• Scalar curvature — In Riemannian geometry, the scalar curvature (or Ricci scalar) is the simplest curvature invariant of a Riemannian manifold. To each point on a Riemannian manifold, it assigns a single real number determined by the intrinsic geometry of the… …   Wikipedia

• Pinsky phenomenon — The Pinsky phenomenon is a result in Fourier analysis, a branch of mathematics [Cite journal volume = 27 issue = 3 pages = 565 605 last = Taylor first = M. E. title = THE GIBBS PHENOMENON, THE PINSKY PHENOMENON, AND VARIANTS FOR EIGENFUNCTION… …   Wikipedia

• Cheng's eigenvalue comparison theorem — In Riemannian geometry, Cheng s eigenvalue comparison theorem states in general terms that when a domain is large, the first Dirichlet eigenvalue of its Laplace–Beltrami operator is small. This general characterization is not precise, in part… …   Wikipedia

• Glossary of Riemannian and metric geometry — This is a glossary of some terms used in Riemannian geometry and metric geometry mdash; it doesn t cover the terminology of differential topology. The following articles may also be useful. These either contain specialised vocabulary or provide… …   Wikipedia

• Buckminster Fuller — Infobox Person name = R. Buckminster Fuller image size = 200px caption = R. Buckminster Fuller c.1917 birth date = birth date|1895|07|12 birth place = Milton, Massachusetts death date = death date and age|1983|7|1|1895|07|12|mf=y death place =… …   Wikipedia

• Gauss–Bonnet theorem — The Gauss–Bonnet theorem or Gauss–Bonnet formula in differential geometry is an important statement about surfaces which connects their geometry (in the sense of curvature) to their topology (in the sense of the Euler characteristic). It is named …   Wikipedia