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Let X be a compact complex surface with a real foliation. If all leaves are compact complex curves, the foliation must be holomorphic.

Complex Variables · Mathematics 2007-05-23 Joerg Winkelmann

We introduce the so-called BT-category of borelian-topological spaces: it will be a natural frame for a measurable classification of usual foliations and laminations. We focus on the two-dimensional case: borelian laminations by surfaces.…

Dynamical Systems · Mathematics 2007-05-23 M. Bermúdez , G. Hector

We introduce a simple procedure to integrate differential forms with arbitrary holomorphic poles on Riemann surfaces. It gives rise to an intrinsic regularization of such singular integrals in terms of the underlying conformal geometry.…

Differential Geometry · Mathematics 2023-04-12 Si Li , Jie Zhou

We prove that a probability measure on a compact non-singular lamination by hyperbolic Riemann surfaces is harmonic if and only if it is the projection of a measure on the unit tangent bundle such that it is invariant under both the…

Dynamical Systems · Mathematics 2007-10-11 Yuri Bakhtin , Matilde Martinez

We consider simply connected log-Riemann surfaces with a finite number of ramification points. We prove that these surfaces are biholomorphic to C with uniformizations given by entire functions of the form F (z) = \int Q(z) e^{P(z)} dz…

Complex Variables · Mathematics 2010-11-04 Kingshook Biswas , Ricardo Perez-Marco

This is intended as an introduction to and review of the work of V, Arnold and his collaborators on the theory of Lagrangian and Legendrian submanifolds and their associated maps. The theory is illustrated by applications to Hamilton-Jacobi…

General Relativity and Quantum Cosmology · Physics 2015-06-25 Juergen Ehlers , Ezra T. Newman

We review properties of closed meromorphic $1$-forms and of the foliations defined by them. We present and explain classical results from foliation theory, like index theorems, the existence of separatrices, and resolution of singularities…

Complex Variables · Mathematics 2023-06-07 Jorge Vitório Pereira

We extend the unpublished work of M. Handel and R. Miller on the classification, up to isotopy, of endperiodic automorphisms of surfaces. We give the Handel-Miller construction of the geodesic laminations, give an axiomatic theory for…

Geometric Topology · Mathematics 2020-12-02 John Cantwell , Lawrence Conlon , Sergio R. Fenley

Riemann Poisson manifolds were introduced by the author in [1] and studied in more details in [2]. K\"ahler-Riemann foliations form an interesting subset of the Riemannian foliations with remarkable properties (see [3]). In this paper we…

Differential Geometry · Mathematics 2007-05-23 Mohamed Boucetta

We characterize the monodromies of projective structures with fuchsian-type singularities. Namely, any representation from the fundamental group of a Riemann surface of finite-type in $PSL_2(\mathbb{C})$ can be represented as the holonomy…

Complex Variables · Mathematics 2021-05-18 Genyle Nascimento

On a compact foliated Riemannian manifold with some transversal curvature conditions, there are no nontrivial basic harmonic forms (M. Min-Oo et al., J. Reine Angew. Math. 415 (1991). In this paper, we extend the above facts to a complete…

Differential Geometry · Mathematics 2016-06-30 Seoung Dal Jung , Huili Liu

We continue the development of the theory of infinitesimal Lipschitz equivalence, showing the genericity of the condition for families of hypersurfaces with isolated singularities.

Complex Variables · Mathematics 2014-10-14 Terence Gaffney

Using techniques from geometry and complex analysis in their simplest form, we present a derivation of electric fields on surfaces with non-trivial topology. A byproduct of this analysis is an intuitive visualization of elliptic functions…

General Physics · Physics 2020-09-21 Spencer Tamagni , Costas Efthimiou

Given a harmonic measure of a hyperbolic lamination on a compact metric space, a positive harmonic function is defined on the universal cover of a typical leaves. We discuss some properties of this function. Especially if all the leaves are…

Geometric Topology · Mathematics 2013-06-06 Shigenori Matsumoto

In [Mor], we have introduced a notion of flat laminations on surfaces endowed with a flat structure, similar to geodesic laminations on hyperbolic surfaces. Here is a sequel to this article that aims at defining transversal measures on flat…

Differential Geometry · Mathematics 2013-12-02 Thomas Morzadec

We describe the space of measured foliations induced on a compact Riemann surface by meromorphic quadratic differentials. We prove that any such foliation is realized by a unique such differential $q$ if we prescribe, in addition, the…

Geometric Topology · Mathematics 2016-12-26 Subhojoy Gupta , Michael Wolf

This thesis treats two main topics: calibrated symplectic foliations, and local Lie groupoids. Calibrated symplectic foliations are one possible generalization of taut foliations of 3-manifolds to higher dimensions. Their study has been…

Differential Geometry · Mathematics 2018-04-05 Daan Michiels

We obtain a topological interpretation for the space of $L^2$ harmonic forms for some complete Riemannian manifold : when the geometry at infinity is the geometry of a simply connected nilpotent Lie group, when the geometry at infinity is a…

Differential Geometry · Mathematics 2007-05-23 Gilles Carron

This paper is devoted to characterizing complex projective structures defined on Riemann surface orbifolds and giving rise to injective developing maps defined on the monodromy covering of the surface (orbifold) in question. The relevance…

Dynamical Systems · Mathematics 2022-02-14 Ahmed Elshafei , Julio C. Rebelo , Helena Reis

In this paper we classify those three-dimensional Riemannian Lie groups which admit harmonic morphisms to surfaces.

Differential Geometry · Mathematics 2010-03-23 Sigmundur Gudmundsson , Martin Svensson
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