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词条 Quot scheme
释义

  1. References

In algebraic geometry, the Quot scheme is a scheme parametrizing locally free sheaves on a projective scheme. More specifically, if X is a projective scheme over a Noetherian scheme S and if F is a coherent sheaf on X, then there is a scheme whose set of T-points is the set of isomorphism classes of the quotients of that are flat over T. The notion was introduced by Alexander Grothendieck.[1]

It is typically used to construct another scheme parametrizing geometric objects that are of interest such as a Hilbert scheme. (In fact, taking F to be the structure sheaf gives a Hilbert scheme.)

References

1. ^Grothendieck, Alexander. Techniques de construction et théorèmes d'existence en géométrie algébrique III : préschémas quotients. Séminaire Bourbaki, 6 (1960-1961), Exposé No. 212, 20 p.
  • Nitsure, N. Construction of Hilbert and Quot schemes. Fundamental algebraic geometry: Grothendieck’s FGA explained, Mathematical Surveys and Monographs 123, American Mathematical Society 2005, 105–137.
  • https://amathew.wordpress.com/2012/06/02/the-stack-of-coherent-sheaves/
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1 : Algebraic geometry

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