Parabolic k-ample bundles

Details Parabolic k-ample bundles Parabolic k-ample bundles

2011-03-07

arxiv.org/abs/1103.1190v1

Mathematics

Algebraic Geometry

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Scientific paper

We construct projectivization of a parabolic vector bundle and a tautological line bundle over it. It is shown that a parabolic vector bundle is ample if and only if the tautological line bundle is ample. This allows us to generalize the notion of a k-ample bundle, introduced by Sommese, to the context of parabolic bundles. A parabolic vector bundle $E_*$ is defined to be k-ample if the tautological line bundle ${\mathcal O}_{{\mathbb P}(E_*)}(1)$ is $k$--ample. We establish some properties of parabolic k-ample bundles.

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