English

Topology of singular holomorphic foliations along a compact divisor

Dynamical Systems 2012-06-12 v1

Abstract

We consider a singular holomorphic foliation \uF\uF defined near a compact curve \uC\uC of a complex surface. Under some hypothesis on (\uF,\uC)(\uF,\uC) we prove that there exists a system of tubular neighborhoods UU of a curve \mcD\underline{\mc D} containing \uC\uC such that every leaf LL of \uF(U\mcD)\uF_{|(U\setminus \underline{\mc D})} is incompressible in U\mcDU\setminus \underline{\mc D}. We also construct a representation of the fundamental group of the complementary of \mcD\underline{\mc D} into a suitable automorphism group, which allows to state the topological classification of the germ of (\uF,\uD)(\uF,\uD), under the additional but generic dynamical hypothesis of transverse rigidity. In particular, we show that every topological conjugation between such germs of holomorphic foliations can be deformed to extend to the exceptional divisor of their reductions of singularities.

Keywords

Cite

@article{arxiv.1206.2121,
  title  = {Topology of singular holomorphic foliations along a compact divisor},
  author = {David Marín and Jean-François Mattei},
  journal= {arXiv preprint arXiv:1206.2121},
  year   = {2012}
}