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We prove the following result that was conjectured by Brunella: Let $X$ be a compact complex manifold of dimension $\geq 3$. Let $\mathcal{F}$ be a codimension one holomorphic foliation on $X$ with ample normal bundle. Then every leaf of…

Complex Variables · Mathematics 2023-11-08 Masanori Adachi , Judith Brinkschulte

We classify symplectically foliated fillings of certain foliated manifolds with a contact structure on the leaves. We show that for the foliated sphere cotangent bundle of the Reeb foliation on the three-sphere, the corresponding foliated…

Symplectic Geometry · Mathematics 2026-03-24 Francisco Presas , Sushmita Venugopalan

We give a classification of the dual graphs of the exceptional divisors on the minimal resolutions of log canonical foliation singularities on surfaces. For an application, we show the set of foliated minimal log discrepancies for foliated…

Algebraic Geometry · Mathematics 2021-04-02 Yen-An Chen

We generalize a theorem of Delzant classifying compact connected symplectic manifolds with completely integrable torus actions to certain singular symplectic spaces. The assumption on singularities is that if they are not finite quotient…

Symplectic Geometry · Mathematics 2007-05-23 D. Burns , V. Guillemin , E. Lerman

In this paper, we classify the configurations of the singular points which appear on the quotients of the projective plane by the $1$-foliations of degree $-1$ in characteristic $2$.

Algebraic Geometry · Mathematics 2021-10-06 Tadakazu Sawada

We study holomorphic foliations tangent to singular real-analytic Levi-flat hypersurfaces in compact complex manifolds of complex dimension two. We give some hypotheses to guarantee the existence of dicritical singularities of these…

Complex Variables · Mathematics 2018-10-16 Andrés Beltrán , Arturo Fernández-Pérez , Hernán Neciosup

In this paper, we prove that the blowing-up preserve the local monomiality of foliated space.

Algebraic Geometry · Mathematics 2015-01-08 Aymen Braghtha

We study analytic deformations of holomorphic foliations given by homogeneous integrable one-forms in the complex affine space $\mathbb C^n$. The deformation is supposed to be of first order (order one in the parameter). We also assume that…

Algebraic Geometry · Mathematics 2020-08-14 Ariel Molinuevo , Bruno Scárdua

In this paper, we study affine manifolds endowed with linear foliations. These are foliations defined by vector subspaces invariant by the linear holonomy. We show that an $n$-dimensional compact, complete, and oriented affine manifold…

Differential Geometry · Mathematics 2021-07-06 Tsemo Aristide

We present a few general results on foliations of 4-manifolds by surfaces: existence, tautness, relations to minimal genus of embedded surfaces; as well as some open problems. We hope to stimulate interest in this area.

Geometric Topology · Mathematics 2007-05-23 Alexandru Scorpan

We show that the conditions imposed on a second order linear differential equation with rational coefficients on the complex line by requiring it to have regular singularities with fixed exponents at the points of a finite set $P$ and…

Algebraic Geometry · Mathematics 2016-08-09 Szilard Szabo

When $p$ is inert in the quadratic imaginary field $E$ and $m<n$, unitary Shimura varieties of signature $(n,m)$ and a hyperspecial level subgroup at $p$, carry a natural foliation of height 1 and rank $m^2$ in the tangent bundle of their…

Algebraic Geometry · Mathematics 2019-02-20 Ehud De Shalit , Eyal Z. Goren

In this paper we survey on some recent results on Riemannian orbifolds and singular Riemannian foliations and combine them to conclude the existence of closed geodesics in the leaf space of some classes of singular Riemannian foliations…

Differential Geometry · Mathematics 2012-01-30 Marcos M. Alexandrino , Miguel Angel Javaloyes

We show that for a taut foliation F with one-sided branching of an atoroidal 3-manifold M, one can construct a pair of genuine laminations with solid torus complementary regions which bind every leaf of F in a geodesic lamination. These…

Geometric Topology · Mathematics 2009-09-25 Danny Calegari

A foliation is said to admit a foliated contact structure if there is a codimension 1 distribution in the tangent space of the foliation such that the restriction to any leaf is contact. We prove a version of the Weinstein conjecture in the…

Symplectic Geometry · Mathematics 2015-09-18 Álvaro del Pino , Francisco Presas

We construct smooth fiber bundles such that the fibers are exotic tori and the total space has finite abelian fundamental group. This gives examples of a Riemannian foliation on a closed manifold whose leaves are exotic tori and whose total…

Algebraic Topology · Mathematics 2019-07-03 F. Thomas Farrell , Xiaolei Wu

A foliation on a compact manifold is uniform if each pair of leaves of the induced foliation on the universal cover are at finite Hausdorff distance from each other. We study uniform foliations with Reeb components. We give examples of such…

Geometric Topology · Mathematics 2023-11-29 Joaquín Lema

We give analytic and algebraic conditions under which a deformation of real analytic functions with non-isolated singular locus is a deformation with fibre constancy.

Algebraic Geometry · Mathematics 2025-03-17 Cezar Joiţa , Matteo Stockinger , Mihai Tibăr

We give the complete solution to the local diffeomorphism classification problem of generic singularities which appear in tangent surfaces, in as wider situations as possible. We interpret tangent geodesics as tangent lines whenever a…

Differential Geometry · Mathematics 2016-02-09 Goo Ishikawa , Tatsuya Yamashita

Let $M$ be a $n$-dimensional complex manifold and $f,g:M\to M$ two distinct holomorphic self-maps. Suppose that $f$ and $g$ coincide on a globally irreducible compact hypersurface $S\subset M$. We show that if one of the two maps is a local…

Complex Variables · Mathematics 2016-04-11 Paolo Arcangeli