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The purpose of this paper is to carry out a classical construction of a non-constant holomorphic disk with boundary on (the suspension of) a Lagrangian submanifold in $\mathbb{R}^{2 n}$ in the case the Lagrangian is the lift of a…

Symplectic Geometry · Mathematics 2017-05-02 Stefan Müller

The purpose of this paper is to present some results on the existence of homologous, nonisotopic symplectic or lagrangian surfaces embedded in a simply connected symplectic 4-dimensional manifold.

Geometric Topology · Mathematics 2007-05-23 Stefano Vidussi

We show that every hyperbolic link complement contains closed quasi-Fuchsian surfaces. As a consequence, we obtain the result that on a hyperbolic link complement, if we remove from each cusp of the manifold a certain finite set of slopes,…

Geometric Topology · Mathematics 2009-09-25 Joseph D. Masters , Xingru Zhang

We study harmonic surfaces in $\mathbb{R}^3$ through the framework of harmonic Enneper immersions and prove a superposition principle for such surfaces. We prove that minimal and maximal surfaces admit a decomposition into harmonic…

Differential Geometry · Mathematics 2026-05-05 Priyank Vasu

We prove a conjecture of Ian Agol: all isometric realizations of a polyhedral surface with boundary sweep out an isotropic subset in the Kapovich-Millson moduli space of polygons isomorphic to the boundary. For a generic polyhedral disk we…

Symplectic Geometry · Mathematics 2022-08-11 Sasha Anan'in , Dmitrii Korshunov

In this short note we discuss high-dimensional examples of Legendrian submanifolds of the standard contact Euclidean space with an infinite number of exact Lagrangian fillings up to Hamiltonian isotopy. They are obtained from the examples…

Symplectic Geometry · Mathematics 2022-11-04 Roman Golovko

A holomorphic Lagrangian fibration on a holomorphically symplectic manifold is a holomorphic map with Lagrangian fibers. It is known that a given compact manifold admits only finitely many holomorphic symplectic structures, up to…

Algebraic Geometry · Mathematics 2014-05-09 Ljudmila Kamenova , Misha Verbitsky

We prove that for any complex manifold X, the set of all holomorphic maps from the unit disc to X whose images are everywhere dense in X forms a dense subset in the space of all holomorphic maps from the disc to X. We show by an example…

Complex Variables · Mathematics 2007-05-23 Franc Forstneric , Joerg Winkelmann

In this note, we first introduce a boundary problem for Lagrangian submanifolds, analogous to the problem for free boundary hypersurfaces and capillary hypersurfaces. Then we present several interesting examples of Lagrangian submanifolds…

Differential Geometry · Mathematics 2025-05-28 Mingyan Li , Guofang Wang , Liangjun Weng

Given a real algebraic variety $X$ of dimension $n$, a very ample divisor $D$ on $X$ and a smooth closed hypersurface $\Sigma$ of $\mathbf{R}^n$, we construct real algebraic hypersurfaces in the linear system $|mD|$ whose real locus…

Algebraic Geometry · Mathematics 2022-05-16 Michele Ancona

We explain how to generalize Lazzarini's structural Theorem from [Laz11] to the case of curves with boundary on a given Lagrangian immersion. As a consequence of this result, we show that we can compute Floer homology with time-independent…

Symplectic Geometry · Mathematics 2018-08-07 Perrier Alexandre

We prove a compactness result for holomorphic curves with boundary on an immersed Lagrangian submanifold with clean self-intersection. As a consequence, we show that the number of intersections of such holomorphic curves with the…

Symplectic Geometry · Mathematics 2009-03-13 Kai Cieliebak , Tobias Ekholm , Janko Latschev

Locally convex compact immersed hypersurfaces in Finsler-Hadamard manifolds with bounded T-curvature are considered. We prove that such hypersurfaces are embedded as the boundary of convex body under certain conditions on the normal…

Differential Geometry · Mathematics 2011-10-11 Alexandr A. Borisenko , Eugeny A. Olin

We consider spaces for which there is a notion of harmonicity for complex valued functions defined on them. For instance, this is the case of Riemannian manifolds on one hand, and (metric) graphs on the other hand. We observe that it is…

Metric Geometry · Mathematics 2016-08-16 Sylvain Barré , Abdelghani Zeghib

We construct examples of inhomogeneous isoparametric real hypersurfaces in complex hyperbolic spaces.

Differential Geometry · Mathematics 2010-11-24 J. Carlos Diaz-Ramos , Miguel Dominguez-Vazquez

Given a closed complex hypersurface $Z\subset \mathbb{C}^{N+1}$ $(N\in\mathbb{N})$ and a compact subset $K\subset Z$, we prove the existence of a pseudoconvex Runge domain $D$ in $Z$ such that $K\subset D$ and there is a complete proper…

Complex Variables · Mathematics 2016-08-31 Antonio Alarcon , Josip Globevnik , Francisco J. Lopez

We describe bounded, holomorphic functions on the complex 2-disc, that admit meromorphic extension to a larger 2-disc. This solves a conjecture of Bickel, Knese, Pascoe and Sola. The key technical ingredient is an old theorem of Zariski…

Complex Variables · Mathematics 2022-06-24 János Kollár

Conditions, related to the so-called bending problem are considered for hypersurfaces of a pseudo-Euclidean space. Corresponding theorems are proved.

Differential Geometry · Mathematics 2010-08-31 Ognian Kassabov

This paper introduces a combinatorial structure of orthogeodesics on hyperbolic surfaces and presents several relations among them. As a primary application, we propose a recursive method for computing the trace (the hyperbolic cosine of…

Geometric Topology · Mathematics 2024-07-02 Nhat Minh Doan

We construct new special Lagrangian submanifolds in complex Euclidean space using a pair of minimal Legendrian submanifolds in odd-dimensional spheres and certain Lagrangian surface belonging to a family that can be considered as a…

Differential Geometry · Mathematics 2012-12-04 Ildefonso Castro , Francisco Urbano