English

Higher codimensional foliations and Kupka singularities

Algebraic Geometry 2018-10-12 v1 Complex Variables Dynamical Systems

Abstract

We consider holomorphic foliations of dimension k>1k>1 and codimension 1\geq 1 in the projective space Pn\mathbb{P}^n, with a compact connected component of the Kupka set. We prove that, if the transversal type is linear with positive integers eigenvalues, then the foliation consist on the fibers of a rational fibration. As a corollary, if F\mathcal{F} is a foliation such that dim(F)cod(F)+2dim(\mathcal{F})\geq cod(\mathcal{F})+2 and has transversal type diagonal with different eigenvalues, then the Kupka component KK is a complete intersection and we get the same conclusion. The same conclusion holds if the Kupka set is a complete intersection and has radial transversal type. Finally, as an application, we find a normal form for non integrable codimension one distributions on Pn\mathbb{P}^{n}.

Keywords

Cite

@article{arxiv.1408.7020,
  title  = {Higher codimensional foliations and Kupka singularities},
  author = {Maurício Corrêa and Omegar Calvo-Andrade and Arturo Fernández-Pérez},
  journal= {arXiv preprint arXiv:1408.7020},
  year   = {2018}
}
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