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We propose a new formulation of a vanishing theorem for surfaces. Although this vanishing theorem follows easily from the well-known Kawamata--Viehweg vanishing theorem, it turns out to be remarkably useful. In particular, it is sufficient…

Algebraic Geometry · Mathematics 2025-12-02 Osamu Fujino , Nao Moriyama

We classify compact surfaces with torsion-free affine connections for which every geodesic is a simple closed curve. In the process, we obtain completely new proofs of all the major results concerning the Riemannian case. In contrast to…

Differential Geometry · Mathematics 2007-05-23 Claude LeBrun , L. J. Mason

Given a complete non-compact surface embedded in R^3, we consider the Dirichlet Laplacian in a layer of constant width about the surface. Using an intrinsic approach to the layer geometry, we generalise the spectral results of an original…

Mathematical Physics · Physics 2015-06-26 G. Carron , P. Exner , D. Krejcirik

We found a new formulation to the Euler-Lagrange equation of the Willmore functional for immersed surfaces in ${\R}^m$. This new formulation of Willmore equation appears to be of divergence form, moreover, the non-linearities are made of…

Analysis of PDEs · Mathematics 2007-05-23 Riviere Tristan

We construct a parabolic entire minimal graph $S$ over a finite topology complete Riemannian surface $\Sigma$ of curvature $-1$ and infinite area (thus of non-parabolic conformal type). The vertical projection of this graph yields a…

Differential Geometry · Mathematics 2016-07-19 Laurent Mazet , Magdalena Rodriguez , Harold Rosenberg

In this article we study complex properties of minimal Lagrangian submanifolds in Kaehler ambient spaces, and how they depend on the ambient curvature. In particular, we prove that, in the negative curvature case, minimal Lagrangians do not…

Differential Geometry · Mathematics 2019-07-03 Roberta Maccheroni

We prove an "h-principle without pre-conditions" for the elimination of tangencies of a Lagrangian submanifold with respect to a Lagrangian distribution. The main result states that such tangencies can always be completely removed at the…

Symplectic Geometry · Mathematics 2022-02-15 Daniel Alvarez-Gavela , Yakov Eliashberg , David Nadler

In this paper we prove that the generalized version of the Minimal Resolution Conjecture stated by Mustata holds for certain general sets of points on a smooth cubic surface $X \subset \mathbb{P}^3$. The main tool used is Gorenstein liaison…

Commutative Algebra · Mathematics 2007-05-23 Marta Casanellas

We consider Lie minimal surfaces, the critical points of the simplest Lie sphere invariant energy, in Riemannian space forms. These surfaces can be characterized via their Euler-Lagrange equations, which take the form of differential…

Differential Geometry · Mathematics 2023-10-25 Joseph Cho , Masaya Hara , Denis Polly , Tomohiro Tada

We give a complete topological classification of minimal surfaces in Euclidian three-space.

Differential Geometry · Mathematics 2007-05-23 Charles Frohman , William H. Meeks

Constrained Willmore surfaces are conformal immersions of Riemann surfaces that are critical points of the Willmore energy $W=\int H^2$ under compactly supported infinitesimal conformal variations. Examples include all constant mean…

Differential Geometry · Mathematics 2009-09-29 Christoph Bohle , G. Paul Peters , Ulrich Pinkall

We prove a bubble tree convergence theorem for a sequence of closed Hamiltonian Stationary Lagrangian surfaces with bounded areas and Willmore energies in a complete K{\"a}hler surface. We also prove two strong compactness theorems on the…

Differential Geometry · Mathematics 2019-10-08 Jingyi Chen , John Man Shun Ma

In this article, we consider the minimal $L^2$ integrals related to modules at boundary points on fibrations over open Riemann surfaces, and present a characterization for the concavity property of the minimal $L^2$ integrals degenerating…

Complex Variables · Mathematics 2023-01-18 Qi'an Guan , Zhitong Mi , Zheng Yuan

We extend the $l^2(L^p)$ decoupling theorem of Bourgain-Demeter to the full class of developable surfaces in $\mathbb{R}^3$. This completes the $l^2$ decoupling theory of the zero Gaussian curvature surfaces that lack planar (or umbilic)…

Classical Analysis and ODEs · Mathematics 2020-02-11 Dominique Kemp

In this paper we show how to lift Lagrangian immersions in $\mathbb{C} P^{n-1}$ to produce Lagrangian cones in $\mathbb{C} ^n$, and use this process to produce several families of examples of Lagrangian cones and special Lagrangian cones.…

Geometric Topology · Mathematics 2022-11-02 Scott Baldridge , Ben McCarty , David Shea Vela-Vick

In this paper, we prove a uniform approximation theorem with interpolation for complete conformal minimal surfaces with finite total curvature in the Euclidean space $\mathbb{R}^n$ $(n\ge 3)$. As application, we obtain a Mittag-Leffler type…

Differential Geometry · Mathematics 2020-10-30 Antonio Alarcon , Francisco J. Lopez

This paper is the fifth and final in a series on embedded minimal surfaces. Following our earlier papers on disks, we prove here two main structure theorems for non-simply connected embedded minimal surfaces of any given fixed genus. The…

Differential Geometry · Mathematics 2012-11-21 Tobias H. Colding , William P. Minicozzi

In this paper, we study geometry of totally real minimal surfaces in the complex hyperquadric $Q_{N-2}$, and obtain some characterizations of the harmonic sequence generated by these minimal immersions. For totally real flat surfaces that…

Differential Geometry · Mathematics 2020-01-09 Ling He , Xiaoxiang Jiao , Mingyan Li

For a nonlinear system of coupled PDEs, that describes evolution of a viscous thin liquid sheet and takes account of surface tension at the free surface, we show exponential $(H^1,\,L^2)$ asymptotic decay to the flat profile of its…

Analysis of PDEs · Mathematics 2018-07-04 Marco A. Fontelos , G. Kitavtsev , R. M. Taranets

In real space forms, Fraser and Schoen proved that a free-boundary minimal disk in a geodesic ball is totally geodesic. In this note, we consider free-boundary minimal surfaces $\Sigma$ (of any genus) in geodesic balls of complex space…

Differential Geometry · Mathematics 2020-11-17 Jesse Madnick