Über sphärische Blätterungen und die Vollständigkeit ihrer Blätter.
Dans cet article, nous classifions les feuilletages par plans de . (Deux feuilletages sont “conjugués” s’il existe un homéomorphisme qui envoie les feuilles de l’un sur les feuilles de l’autre.)Le résultat démontré est analogue à celui de Denjoy pour le tore . Les classes de conjugaison sont indexées pour l’ensemble des irrationnels.
We prove that the Lie algebra of infinitesimal automorphisms of the transverse structure on the total space of the transverse bundle of a foliation is isomorphic to the semi-direct product of the Lie algebra of the infinitesimal automorphism of the foliation by the vector space of the transverse vector fields. The derivations of this algebra are entirely determined and we prove that this Lie algebra characterises the foliated structure of a compact Hausdorff foliation.
Let be a codim 1 local foliation generated by a germ of the form for some complex numbers and germs of holomorphic functions at the origin in . We determine, under some conditions, the set of equivalence classes of first order unfoldings and construct explicitly a universal unfolding of . Special cases of this include foliations with holomorphic or meromorphic first integrals. We also show that the unfolding theory for is equivalent to the unfolding theory for the multiform function...
The objective of this paper is to give a criterium for an unfolding of a holomorphic foliation with singularities to be holomorphically trivial.