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

Complex Variables · Mathematics 2017-09-25 Liliana Jurado , Bruno Scardua

We study the topology of a complete asymptotically hyperbolic Einstein manifold such that its conformal boundary has positive Yamabe invariant. We proved that all maps from such manifold into any nonpositively curved manifold are…

Differential Geometry · Mathematics 2007-05-23 Naichung Conan Leung , Tom Yau-heng Wan

We prove that any compact homogeneous locally conformally K\"ahler manifold has parallel Lee form.

Differential Geometry · Mathematics 2015-06-16 Paul Gauduchon , Andrei Moroianu , Liviu Ornea

The topological Molino's description of equicontinuous foliated spaces, studied by the first author and Moreira Galicia, gives conditions to reduce their study to the particular case where the holonomy pseudogroup can be represented by a…

Geometric Topology · Mathematics 2019-04-23 Jesús A. Álvarez López , Ramón Barral Lijó

In this paper, by use of techniques associated to cobordism theory and Morse theory,we give a simple proof of Poincare conjecture, i.e. Every compact smooth simply connected 3-manifold is homeomorphic to 3-sphere.

Geometric Topology · Mathematics 2010-04-28 Ming Yang

We show that for any k>1, stratified sets of finite complexity are insufficient to realize all homology classes of codimension k in all smooth manifolds. We also prove a similar result concerning smooth generic maps whose double-point sets…

Algebraic Topology · Mathematics 2014-03-07 Mark Grant , Andras Szucs

The Lichnerowicz conjecture asserts that all harmonic manifolds are either flat or locally symmetric spaces of rank 1. This conjecture has been proved by Z.I. Szabo for harmonic manifolds with compact universal cover. E. Damek and F. Ricci…

Differential Geometry · Mathematics 2013-02-18 Gerhard Knieper , Norbert Peyerimhoff

We show how topological methods developed in a previous article can be applied to prove new results about topological and homological finiteness properties of monoids. A monoid presentation is called special if the right-hand side of each…

Group Theory · Mathematics 2024-04-29 Robert D. Gray , Benjamin Steinberg

We formulated a mirror-free approach to the mirror conjecture, namely, quantum hyperplane section conjecture, and proved it in the case of nonnegative complete intersections in homogeneous manifolds. For the proof we followed the scheme of…

alg-geom · Mathematics 2007-05-23 Bumsig Kim

The homotopy type of the complement of a complex coordinate subspace arrangement is studied by fathoming out the connection between its topological and combinatorial structures. A family of arrangements for which the complement is homotopy…

Algebraic Topology · Mathematics 2007-05-23 Jelena Grbic , Stephen Theriault

We prove that any holomorphic geometric structure of affine type on an Oeljeklaus- Toma manifold is locally homogeneous. For locally conformal K\"ahler Oeljeklaus-Toma manifolds we prove that all holomorphic geometric structures, and also…

Differential Geometry · Mathematics 2024-08-30 Indranil Biswas , Sorin Dumitrescu

A manifold $M^n$ inherits a labeled $n$-dimensional graph $\widetilde{M}[G^L]$ structure consisting of its charts. This structure enables one to characterize fundamental groups of manifolds, classify those of locally compact manifolds with…

General Mathematics · Mathematics 2010-06-21 Linfan Mao

We prove the following theorem for Holomorphic Foliations in compact complex kaehler manifolds: if there is a compact leaf with finite holonomy, then every leaf is compact with finite holonomy. As corollary we reobtain stability theorems…

Geometric Topology · Mathematics 2010-04-20 Jorge Vitorio Pereira

An LCK manifold with potential is a complex manifold with a Kahler potential on its cover, such that any deck transformation multiplies the Kahler potential by a constant multiplier. We prove that any homogeneous LCK manifold admits a…

Differential Geometry · Mathematics 2023-05-24 Liviu Ornea , Misha Verbitsky

Following the argument for diffeomorphisms by Galatius and Randal-Williams, we prove that homeomorphisms of 1-connected manifolds of even dimension at least 6 exhibit homological stability. We deduce similar results for PL homeomorphisms…

Algebraic Topology · Mathematics 2016-08-23 Alexander Kupers

A subset S of a Riemannian manifold N is called extrinsically homogeneous if S is an orbit of a subgroup of the isometry group of N. Thorbergsson proved the remarkable result that every complete, connected, full, irreducible isoparametric…

Differential Geometry · Mathematics 2016-09-07 Ernst Heintze , Xiaobo Liu

We construct a new infinite-dimensional family of homogeneous quasimorphisms on the group of Hamiltonian diffeomorphisms of the two-sphere. Moreover, for any constant $K$ less than the total area of the sphere, we produce unbounded…

Symplectic Geometry · Mathematics 2025-12-01 Yongsheng Jia , Richard Webb

Matchbox manifolds ${\mathfrak M}$ are a special class of foliated spaces, which includes as special examples exceptional minimal sets of foliations, weak solenoids, suspensions of odometer and Toeplitz actions, and tiling spaces associated…

Dynamical Systems · Mathematics 2012-08-09 Alex Clark , Steven Hurder , Olga Lukina

After introducing the different boundary geometries of rank one symmetric spaces, we state and prove Fried's theorem in the general setting of all those geometries: a closed manifold with a similarity structure is either complete or the…

Differential Geometry · Mathematics 2019-09-25 Raphaël Alexandre

We consider a class of homogeneous manifolds over a simple Lie group which appears in the problem of classification of homogeneous manifolds with reductive subgroups of maximal rank as stabilizer of a point. We prove that any manifold of…

Quantum Algebra · Mathematics 2007-05-23 Vadim Ostapenko
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