covering sheaf

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• Sheaf (mathematics) — This article is about sheaves on topological spaces. For sheaves on a site see Grothendieck topology and Topos. In mathematics, a sheaf is a tool for systematically tracking locally defined data attached to the open sets of a topological space.… …   Wikipedia

• Grothendieck topology — In category theory, a branch of mathematics, a Grothendieck topology is a structure on a category C which makes the objects of C act like the open sets of a topological space. A category together with a choice of Grothendieck topology is called a …   Wikipedia

• Geography of Sheffield — Sheffield is the most geographically diverse city in Englandref|GEO. The city nestles in a natural amphitheatre created by a number of hills and the confluence of five rivers: Don, Sheaf, Rivelin, Loxley and Porter. As such, much of the city is… …   Wikipedia

• Sheffield — For other uses, see Sheffield (disambiguation). City of Sheffield   City Metropolitan borough   Top left …   Wikipedia

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• Orbifold — This terminology should not be blamed on me. It was obtained by a democratic process in my course of 1976 77. An orbifold is something with many folds; unfortunately, the word “manifold” already has a different definition. I tried “foldamani”,… …   Wikipedia

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• Vector bundle — The Möbius strip is a line bundle over the 1 sphere S1. Locally around every point in S1, it looks like U × R, but the total bundle is different from S1 × R (which is a cylinder instead). In mathematics, a vector bundle is a… …   Wikipedia

• Glossary of scheme theory — This is a glossary of scheme theory. For an introduction to the theory of schemes in algebraic geometry, see affine scheme, projective space, sheaf and scheme. The concern here is to list the fundamental technical definitions and properties of… …   Wikipedia

• List of Biblical names — This is a list of names from the Bible, mainly taken from the 19th century public domain resource: : Hitchcock s New and Complete Analysis of the Holy Bible by Roswell D. Hitchcock, New York: A. J. Johnson, 1874, c1869.Each name is given with its …   Wikipedia

• List of mathematics articles (C) — NOTOC C C closed subgroup C minimal theory C normal subgroup C number C semiring C space C symmetry C* algebra C0 semigroup CA group Cabal (set theory) Cabibbo Kobayashi Maskawa matrix Cabinet projection Cable knot Cabri Geometry Cabtaxi number… …   Wikipedia