Base loci of linear series are numerically determined

Nakamaye, Michael

doi:10.1090/S0002-9947-02-03180-X

Base loci of linear series are numerically determined
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by Michael Nakamaye PDF

Trans. Amer. Math. Soc. 355 (2003), 551-566 Request permission

Abstract:

We introduce a numerical invariant, called a moving Seshadri constant, which measures the local positivity of a big line bundle at a point. We then show how moving Seshadri constants determine the stable base locus of a big line bundle.

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