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sheaf
▪ I. sheaf, n. (ʃiːf) Forms: α. 1 scéaf, 4–5 shef, schef, scheef, 4–6 shefe, sheef, 5 sheeffe, (chyfe), 5–6 schefe, scheff(e, sheff, 5–7 sheffe, 6 sheaffe, schiefe, Sc. scheiff, (teind-)cheif, 6–7 sheafe, 7 sheave, sheive, 8 Sc. sheaff, 6– sheaf. pl. 1 scéafas, (scéabas, scébas), 3 sheve, (Orm.) shæ...
Oxford English Dictionary
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Sheaf
Sheaf may refer to:
Sheaf (agriculture), a bundle of harvested cereal stems
Sheaf (mathematics), a mathematical tool
Sheaf toss, a Scottish sport River Sheaf, a tributary of River Don in England
The Sheaf, a student-run newspaper serving the University of Saskatchewan
Aluma, a settlement in Israel
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sheaf
sheaf/ʃi:f; ʃif/ n(pl sheaves / ʃi:vz; ʃivz/)1 bundle of stalks of corn, barley, etc tied together after reaping (谷物等收割後的)束, 捆.2 bundle of papers, etc laid lengthwise and often tied together (文件等的)束, 扎.
牛津英汉双解词典
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Sheaf (agriculture)
The traditional sheaf pitchfork has a long wooden handle, two short tynes and a rounded back to make the placing of sheaves easy. Heraldry
In heraldry a wheat sheaf is called a garb.
See also
Omer (unit), a Biblical measure of volume of grain.
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Sheaf (mathematics)
For , this sheaf is called the structure sheaf and is denoted . The nonzero functions also form a sheaf, denoted . See also
Coherent sheaf
Gerbe
Stack (mathematics)
Sheaf of spectra
Perverse sheaf
Presheaf of spaces
Constructible sheaf
De Rham's theorem
Notes
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Constant sheaf
This sheaf identifies with the sheaf of locally constant -valued functions on . is a sheaf called the constant sheaf on with value .
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Ben Sheaf
Sheaf signed for Coventry City on a 3 year deal in July 2021.
International career
Sheaf debuted for England under-16 team in the Victory Shield. They won 2–0 in the first game which Sheaf scored a penalty and drew the second game 0–0.
Personal life
Sheaf comes from a sporting family.
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Max Sheaf
Sheaf was released by Hull City at the end of the 2020–21 season.
On 27 August 2021, Sheaf signed a one-year contract with Gloucester City. Personal life
Sheaf's older brother Ben is also a footballer.
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Sheaf Mount
Four ships operated by the Sheaf Steam Shipping Co were named Sheaf Mount.
, in service 1919–30
, in service 1939–42
, in service 1945–57,
, in service
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The Sheaf
The Sheaf is a student-run non-profit organization. The Sheaf's website has had a fifth section — technology — since 2011.
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Sheaf House
Sheaf House was a nine-storey tower building by Sheaf Square, next to Sheffield railway station, in the centre of Sheffield, in South Yorkshire, England The building was demolished in late 2005 to make way for the redevelopment of Sheaf Square.
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Sheaf Square
The square lies near the confluence of the Porter Brook and River Sheaf. , Sheaf Street
Squares in Sheffield
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Ideal sheaf
Conversely, for any ideal sheaf J in a sheaf of rings A, there is a natural structure of a sheaf of rings on the quotient sheaf A/J. (See sheaf cohomology.)
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Reflexive sheaf
In algebraic geometry, a reflexive sheaf is a coherent sheaf that is isomorphic to its second dual (as a sheaf of modules) via the canonical map. For example, a canonical sheaf (dualizing sheaf) on a normal projective variety is a divisorial sheaf.
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Torsion sheaf
A torsion sheaf on an étale site is the union of its constructible subsheaves.
See also
Twisted sheaf
Notes
References
J. S. Milne, Étale Cohomology
Sheaf theory
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