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Related papers: Foliations with non-compact leaves on surfaces

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In this paper, we investigate the mean curvature flows starting from all non-minimal leaves of the isoparametric foliation given by a certain kind of solvable group action on a symmetric space of non-compact type. We prove that the mean…

Differential Geometry · Mathematics 2020-04-03 Naoyuki Koike

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…

Algebraic Geometry · Mathematics 2025-12-03 Mateus Figueira , Crislaine Kuster , Ruben Lizarbe , Alan Muniz

Irreducible isoparametric foliations of arbitrary codimension q on complex projective spaces CP^n are classified, except if n=15 and q=1. Remarkably, there are noncongruent examples that pull back under the Hopf map to congruent foliations…

Differential Geometry · Mathematics 2014-03-05 Miguel Dominguez-Vazquez

We study conformal structure and topology of leaves of singular foliations by Riemann surfaces.

Complex Variables · Mathematics 2016-12-02 Nessim Sibony , Erlend Fornæss Wold

With respect to every Riemannian metric, the Teichm\"uller metric, and the Thurston metric on Teichm\"uller space, we show that there exist measured foliations on surfaces whose extremal length functions are not convex. The construction…

Geometric Topology · Mathematics 2023-10-13 Nathaniel Sagman

Every noncompact surface is shown to have a (3,6)-tight triangulation, and applications are given to the generic rigidity of countable bar-joint frameworks in R^3. In particular, every noncompact surface has a (3,6)-tight triangulation that…

Combinatorics · Mathematics 2025-04-08 Stephen C. Power

This paper deals with the following question: which manifolds can be realized as leaves of codimension-1 symplectic foliations on closed manifolds? We first observe that leaves of symplectic foliations are necessarily strongly geometrically…

Symplectic Geometry · Mathematics 2025-02-04 Fabio Gironella , Lauran Toussaint

We discuss various problems regarding the structure of the foliation of some foliated submanifolds S of C^n, in particular Levi flat ones. As a general scheme, we suppose that S is bounded along a coordinate (or a subset of coordinates),…

Complex Variables · Mathematics 2007-08-14 Giuseppe Della Sala

We study those real $\mathcal{C}^\infty$ foliations in complex surfaces whose leaves are holomorphic curves. The main motivation is to try and understand these foliations in neighborhoods of curves: can we expect the space of foliations in…

Complex Variables · Mathematics 2021-05-12 Olivier Thom

Let $M$ be a Riemannian manifold of dimension $n+1$ with smooth boundary and $p\in \partial M$. We prove that there exists a smooth foliation around $p$ whose leaves are submanifolds of dimension $n$, constant mean curvature and its arrive…

Differential Geometry · Mathematics 2019-04-29 J. Fabio Montenegro

We prove that (apart from dimension $n=4$), each Riemannian solenoidal lamination with transitive homeomorphism group and leaves isometric to a symmetric space $X$ of noncompact type, is homeomorphic to the inverse limit of the system of…

Geometric Topology · Mathematics 2023-09-06 Michael Kapovich

In this paper we consider developable surfaces which are isometric to planar domains and which are piecewise differentiable, exhibiting folds along curves. The paper revolves around the longstanding problem of existence of the so-called…

Differential Geometry · Mathematics 2020-08-07 Leonardo Alese

Consider a surface $\Sigma$ with punctures that serve as marked points and at least one marked point on each boundary component. We build a filling surface $\Sigma_n$ by singling out one of the boundary components and denoting by $n$ the…

Geometric Topology · Mathematics 2025-05-08 Pallavi Panda , Hugo Parlier , Lionel Pournin

We prove that contact homeomorphisms preserve characteristic foliations on surfaces in contact $3$-manifolds. More precisely, since the characteristic foliation is a singular $1$-dimensional foliation, we show that singular points are…

Symplectic Geometry · Mathematics 2025-09-03 Baptiste Serraille , Maksim Stokić

We use the reflection group trick to glue manifolds with corners that are Borel-Serre compactifications of locally symmetric spaces of noncompact type and obtain aspherical manifolds. We call these \emph{piecewise locally symmetric}…

Geometric Topology · Mathematics 2011-08-23 T. Tam Nguyen Phan

In this work we exhibit examples of $5$-manifolds that are not homeomorphic to any leaf of any $C^2$ codimension one foliation of any compact $6$-manifold but are homeomorphic to (proper) leaves of some $C^1$ codimension one foliations and…

Geometric Topology · Mathematics 2025-05-14 Carlos Meniño Cotón

Given a spacelike foliation of a spacetime and a marginally outer trapped surface S on some initial leaf, we prove that under a suitable stability condition S is contained in a ``horizon'', i.e. a smooth 3-surface foliated by marginally…

General Relativity and Quantum Cosmology · Physics 2009-11-11 Lars Andersson , Marc Mars , Walter Simon

In this paper we consider a diffeomorphism $f$ of a compact manifold $M$ which contracts an invariant foliation $W$ with smooth leaves. If the differential of $f$ on $TW$ has narrow band spectrum, there exist coordinates $H _x:W_x\to T_xW$…

Dynamical Systems · Mathematics 2016-12-13 Boris Kalinin , Victoria Sadovskaya

This paper describes the geometry and topology of leaves of the isoperiodic foliation of the stratum $\Omega\mathcal{M}_1(1,1,-2)$. We prove that each leaf is a surface of infinite genus homeomorphic to the Loch Ness monster surface and…

Geometric Topology · Mathematics 2025-12-02 Gianluca Faraco , Guillaume Tahar , Yongquan Zhang

We consider fibrations by affine lines on smooth affine surfaces obtained as complements of smooth rational curves $B$ in smooth projective surfaces $X$ defined over an algebraically closed field of characteristic zero. We observe that…

Algebraic Geometry · Mathematics 2022-05-31 Adrien Dubouloz