Volume of Line Bundles via Valuation Vectors (Different from Okounkov Bodies)

Author:

Braunling O1

Affiliation:

1. Mathematical Institute, University of Freiburg, Ernst-Zermelo-Strasse 1, 79104 Freiburg im Breisgau, Germany

Abstract

Abstract Up to a factor 1/n!, the volume of a big line bundle agrees with the Euclidean volume of its Okounkov body. The latter is the convex hull of top rank valuation vectors of sections, all with respect to a single flag. In this paper, we give a new volume formula, valid in the ample cone. It is also based on top rank valuation vectors, but mixes data coming from several different flags.

Funder

DFG

Publisher

Oxford University Press (OUP)

Subject

General Mathematics

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