# Sheaf

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### Definitions from Wordnet 2.0

• a package of several things tied together for carrying or storing

### Definitions from Wiktionary

• a package of several things tied together for carrying or storing

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### Wikipedia Meaning and Definition on 'Sheaf'

• Sheaf: Sheaf may refer to: Sheaf (agriculture), a large bundle in which cereal plants are bound after reaping. Accounts of two usages derived from this are found
• Sheaf (mathematics): 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
• Injective sheaf: to construct the resolutions needed to define sheaf cohomology (and other derived functors, such as sheaf Ext). There is a further group of related concepts
• Coherent sheaf: Coherent sheaf cohomology is a powerful technique, in particular for studying the sections of a given coherent sheaf. A quasicoherent sheaf on a ringed
• Sheaf of modules: In mathematics, a sheaf of O-modules or simply an O-module over a ringed space (X, O) is a sheaf F such that, for any open subset U of X, F(U) is an O(U)-module
• Barley Sheaf, New Jersey: Barley Sheaf was an unincorporated community located within Readington Township in Hunterdon County, New Jersey, United States. It was named for the grain
• Stalk (sheaf): The stalk of a sheaf is a mathematical construction capturing the behaviour of a sheaf around a given point. Sheaves are defined on open sets, but the
• Sheaf cohomology: sheaf cohomology is the application of homological algebra to analyze the global sections of a sheaf on a topological space. Broadly speaking, sheaf cohomology
• Sheaf Square: Sheaf Square is a municipal square lying immediately east of the city centre of Sheffield, England. The sides of the square are lined with major buildings:
• Ideal sheaf: In algebraic geometry and other areas of mathematics, an ideal sheaf (or sheaf of ideals) is the global analogue of an ideal in a ring. The ideal sheaves