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arXiv · 0907.4848

Algebraic foliations defined by quasi-lines

Laurent Bonavero·Andreas Höring
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Abstract

Let X be a projective manifold containing a quasi-line l. An important difference between quasi-lines and lines in the projective space is that in general there is more than one quasi-line passing through two given general points. In this paper we use this feature to construct an algebraic foliation associated to a family of quasi-lines. We prove that if the singular locus of this foliation is not too large, it induces a rational fibration on X that maps the general leaf of the foliation onto a quasi-line in a rational variety.

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Laurent Bonavero, Andreas Höring. 2009-07-28. Algebraic foliations defined by quasi-lines. https://arxiv.org/abs/0907.4848

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