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We prove that, under mild restrictions, the space of codimension-one foliations of degree one on a smooth projective complete intersection has two irreducible components of logarithmic type. We also prove that the same conclusion holds for…

代数几何 · 数学 2025-12-03 Mateus Figueira , Crislaine Kuster , Ruben Lizarbe , Alan Muniz

We investigate the geometry of codimension one foliations on smooth projective varieties defined over fields of positive characteristic with an eye toward applications to the structure of codimension one holomorphic foliations on projective…

代数几何 · 数学 2024-11-20 Wodson Mendson , Jorge Vitório Pereira

This paper is devoted to the study of codimension two holomorphic foliations and distributions. We prove the stability of complete intersection of codimension two distributions and foliations in the local case. Converserly we show the…

动力系统 · 数学 2016-06-01 Dominique Cerveau , Alcides Lins Neto

We study Levi-flat real analytic hypersurfaces with singularities. We prove that the Levi foliation on the regular part of the hypersurface can be holomorphically extended, in a suitable sense, to neighbourhoods of singular points.

复变函数 · 数学 2007-05-23 Marco Brunella

We study codimension one holomorphic foliations on complex projective spaces and compact manifolds under the assumption that the foliation has a projective transverse structure in the complement of some invariant codimension one analytic…

动力系统 · 数学 2010-10-08 Bruno Scardua

We classify nonsingular holomorphic foliations of dimension and codimension one on certain Hopf manifolds. More general, we prove that all nonsingular codimension one distributions on intermediary or generic Hopf manifolds are integrable…

代数几何 · 数学 2018-10-15 Maurício Corrêa , Arturo Fernández-Pérez , Antonio M. Ferreira

We investigate the accumulation to singular points of leaves of codimension one foliations whose normal bundle is ample, with emphasis on the nonexistence of Levi-flat hypersurfaces.

复变函数 · 数学 2007-06-12 Marco Brunella

After a short review on foliations, we prove that a codimension 1 holomorphic foliation on $\mathbb P^3_{\mathbb C}$ with simple singularities is given by a closed rational 1-form. The proof uses Hironaka-Matsumura prolongation theorem of…

动力系统 · 数学 2012-02-28 Dominique Cerveau

We prove that a Morse type codimension one holomorphic foliation is not transverse to a sphere in the complex affine space. Also we characterize the variety of contacts of a linear foliation with concentric spheres.

复变函数 · 数学 2008-11-13 Toshikazu Ito , Bruno Scardua

In this paper, we will construct a pre-normal form for germs of codimension one holomorphic foliation having a particular type of separatrix, of cuspidal type. We will also give a sufficient condition, in the quasi-homogeneous,…

动力系统 · 数学 2013-06-21 Percy Fernández-Sánchez , Jorge Mozo-Fernández , Hernán Neciosup

We classify homogeneous polar foliations of codimension two on irreducible symmetric spaces of noncompact type up to orbit equivalence. Any such foliation is either hyperpolar or the canonical extension of a polar homogeneous foliation on a…

微分几何 · 数学 2024-07-15 José Carlos Díaz-Ramos , Juan Manuel Lorenzo-Naveiro

We study holomorphic foliations with an affine homogeneous transverse structure. We give a friendly characterization of the case of transversely affine foliations in terms of matrix valued pairs of differential forms. This leads naturally…

几何拓扑 · 数学 2014-11-04 Bruno Scardua

The space of codimension one holomorphic foliations of degree 1 in a projective space has an irreducible component whose general element is a logarithmic differential 1-form with simple poles in three hyperplanes. We compute its projective…

代数几何 · 数学 2022-10-21 Mariano Chehebar

In this paper we will establish a structure theorem concerning the extension of analytic objects associated to germs of dimension one foliations on surfaces, through one-dimensional barriers. As an application, an extension theorem for…

复变函数 · 数学 2010-10-08 César Camacho , Bruno Scárdua

In this paper we study transversely holomorphic foliations of complex codimension one with some hypothesis on the transverse structure.

复变函数 · 数学 2017-09-25 Liliana Jurado , Bruno Scardua

We consider holomorphic foliations by curves on compact complex manifolds, for which we investigate the existence of projective structures along the leaves varying holomorphically (foliated projective structures), that satisfy particular…

复变函数 · 数学 2026-01-13 Bertrand Deroin , Adolfo Guillot

For a codimension 1 holomorphic foliation $\mathcal F$ on $\mathbb P_{\mathbb C}^{n}$ satisfying reasonable assumptions, there are estimations of the degree of invariant hypersurfaces H in terms of the degree of $\mathcal F$ (Carnicer,…

动力系统 · 数学 2013-04-19 Dominique Cerveau

Non-dicritical codimension one foliations on projective spaces of dimension four or higher always have an invariant algebraic hypersurface. The proof relies on a strengthening of a result by Rossi on the algebraization/continuation of…

代数几何 · 数学 2018-01-11 Jorge Vitorio Pereira

Let Y be a hypersurface in a 2n-dimensional holomorphic symplectic manifold X. The restriction $\sigma|_Y$ of the holomorphic symplectic form induces a rank one foliation on Y. We investigate situations where this foliation has compact…

代数几何 · 数学 2013-09-19 Justin Sawon

In this paper we give a complete local parametric classification of the hypersurfaces with dimension at least three of a space form that carry a totally geodesic foliation of codimension one. A classification under the assumption that the…

微分几何 · 数学 2019-03-22 Marcos Dajczer , Ruy Tojeiro
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