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The K-Functor in Algebraic Geometry

  • William Fulton
  • Serge Lang
Part of the Grundlehren der mathematischen Wissenschaften book series (GL, volume 277)

Abstract

In the previous chapter we described the geometry of regular morphisms. Here we describe one part of their homology, namely the K-functor on the category of locally free sheaves (which are always assumed to be of finite rank). An arbitrary locally free sheaf does not behave well under the direct image. Fortunately, the K-group generated by the locally free sheaves is also generated by a subfamily of sheaves which do behave well, and which we call regular sheaves. We use a cohomological characterization for these, due to Mumford.

Keywords

Exact Sequence Short Exact Sequence Free Resolution Coherent Sheave Coherent Sheaf 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1985

Authors and Affiliations

  • William Fulton
    • 1
  • Serge Lang
    • 2
  1. 1.Department of MathematicsBrown UniversityProvidenceUSA
  2. 2.Department of MathematicsYale UniversityNew HavenUSA

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