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Positivity

Chapter
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Part of the Ergebnisse der Mathematik und ihrer Grenzgebiete book series (MATHE3, volume 2)

Summary

We have constructed intersection classes by intersecting a cone C in a normal bundle N with the zero-section. If Σ m i [C i ] is the cycle of C, the intersection class has a corresponding decomposition into Σ m i α i , α i A *(Z i ), (Z i )=Supp(C i ). If the bundle N is suitably positive, one can deduce corresponding positivity of the intersection classes, even if the intersections are not proper.

Keywords

Vector Bundle Line Bundle Irreducible Component Normal Bundle Exceptional Divisor 
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-Verlag Berlin Heidelberg 1984

Authors and Affiliations

  1. 1.Department of MathematicsBrown UniversityProvidenceUSA

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