Article ID Journal Published Year Pages File Type
4597767 Journal of Pure and Applied Algebra 2008 12 Pages PDF
Abstract

Working over C, we show that, apart possibly from a unique limit point, the possible values of multi-point Seshadri constants for general points on smooth projective surfaces form a discrete set. In addition to its theoretical interest, this result is of practical value, which we demonstrate by giving significantly improved explicit lower bounds for Seshadri constants on P2 and new results about ample divisors on blow ups of P2 at general points.

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Related Topics
Physical Sciences and Engineering Mathematics Algebra and Number Theory
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