# Make+sheaves

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**sheaves**— ÊƒÉªËf n. bundle of grain bound together after harvesting; bundle, collection v. bind into a sheaf, make into a sheaf ÊƒÉªËv n. wheel with a grooved rim …2

**sheaf**— 1. noun a) A quantity of the stalks and ears of wheat, rye, or other grain, bound together; a bundle of grain or straw. O, let me teach you how to knit again This scattered …3

**bind**— I. v. a. 1. Confine, restrain, restrict, put bonds upon. 2. Bandage, wrap, put a bandage round, wrap up, tie up. 3. Tie, fasten, secure. 4. Stitch and cover, put into a binding. 5. Engage, oblige, obligate, make responsible, lay under obligation …4

**Sheaf**— Sheaf, v. i. To collect and bind cut grain, or the like; to make sheaves. [1913 Webster] They that reap must sheaf and bind. Shak. [1913 Webster] …5

**Fibred category**— Fibred categories are abstract entities in mathematics used to provide a general framework for descent theory. They formalise the various situations in geometry and algebra in which inverse images (or pull backs) of objects such as vector bundles …6

**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.… …7

**Adjoint functors**— Adjunction redirects here. For the construction in field theory, see Adjunction (field theory). For the construction in topology, see Adjunction space. In mathematics, adjoint functors are pairs of functors which stand in a particular… …8

**Sheaf cohomology**— In mathematics, sheaf cohomology is the aspect of sheaf theory, concerned with sheaves of abelian groups, that applies homological algebra to make possible effective calculation of the global sections of a sheaf F. This is the main step, in… …9

**Background and genesis of topos theory**— This page gives some very general background to the mathematical idea of topos. This is an aspect of category theory, and has a reputation for being abstruse. The level of abstraction involved cannot be reduced beyond a certain point; but on the… …10

**Portsmouth Block Mills**— The Portsmouth Block Mills form part of the Portsmouth Dockyard at Portsmouth, Hampshire, England, and were built during the Napoleonic Wars to supply the British Royal Navy with pulley blocks. They started the age of mass production using all… …