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Related papers: Minimal Lagrangian surfaces in $S^2 \times S^2$

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The Weingarten relations satisfied by rotationally symmetric surfaces in Euclidean 3-space E3 are considered from three points of view: restrictions on the slope of the relation at umbilic points, the action of SL2(R) as fractional linear…

Differential Geometry · Mathematics 2024-12-05 Brendan Guilfoyle , Morgan Robson

We give a local analytic characterization that a minimal surface in the 3-sphere $\, \ES^3 \subset \R^4$ defined by an irreducible cubic polynomial is one of the Lawson's minimal tori. This provides an alternative proof of the result by…

Differential Geometry · Mathematics 2014-07-14 Joe S. Wang

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

This exposition gives an introduction to the theory of surfaces in Laguerre geometry and surveys some results, mostly obtained by the authors, about three important classes of surfaces in Laguerre geometry, namely L-isothermic, L-minimal,…

Differential Geometry · Mathematics 2019-03-01 Emilio Musso , Lorenzo Nicolodi

In this paper we show that a nonlocal minimal surface which is a graph outside a cylinder is in fact a graph in the whole of the space. As a consequence, in dimension~$3$, we show that the graph is smooth. The proofs rely on convolution…

Analysis of PDEs · Mathematics 2016-06-14 Serena Dipierro , Ovidiu Savin , Enrico Valdinoci

We show that the torsion of a Cartan geometry can be associated to two spin-2 fields. This structure allows a new approach to deal with the proposal of geometrization of spin-2 fields besides the traditional one dealt with in General…

General Relativity and Quantum Cosmology · Physics 2007-05-23 M. Novello

We reformulate the Einstein equations as equations for families of surfaces on a four-manifold. These surfaces eventually become characteristic surfaces for an Einstein metric (with or without sources). In particular they are formulated in…

General Relativity and Quantum Cosmology · Physics 2009-10-28 Simonetta Frittelli , Carlos Kozameh , Ted Newman

The minimal Lorentzian surfaces in $\mathbb{R}^4_2$ whose first normal space is two-dimensional and whose Gauss curvature $K$ and normal curvature $\varkappa$ satisfy $K^2-\varkappa^2 >0$ are called minimal Lorentzian surfaces of general…

Differential Geometry · Mathematics 2021-08-02 Ognian Kassabov , Velichka Milousheva

In this paper, we study the Gauss map of a free boundary minimal surface. The main theorem asserts that if components of the Gauss map are eigenfunctions of the Jacobi-Steklov operator, then the surface must be rotationally symmetric.

Differential Geometry · Mathematics 2017-11-16 Hung Tran

In this note, we use a result of Osserman and Schiffer \cite{OS} to give a variational characterization of the catenoid. Namely, we show that subsets of the catenoid minimize area within a geometrically natural class of minimal annuli. To…

Differential Geometry · Mathematics 2016-05-27 Jacob Bernstein , Christine Breiner

The indicatrix or curvature ellipse and the characteristic curve of a surface in $\mathbf R^4$ are presented, as well as the projective duality connecting them. The characterisation of points in the surfaces as elliptic, parabolic and…

Differential Geometry · Mathematics 2013-04-09 J. Basto-Gonçalves

We give an overview of results on irregular complex surfaces of general type, discussing in particular the distribution of the numerical invariants self-intersection of a canonical divisor and holomorphic Euler characteristic for the…

Algebraic Geometry · Mathematics 2009-09-30 Margarida Mendes Lopes , Rita Pardini

We provide a congruence theorem for minimal surfaces in $S^5$ with constant contact angle using Gauss-Codazzi-Ricci equations. More precisely, we prove that Gauss-Codazzi-Ricci equations for minimal surfaces in $S^5$ with constant contact…

Differential Geometry · Mathematics 2007-05-23 Rodrigo Ristow Montes , Jose A. Verderesi

We first take into account variational problems with periodic boundary conditions, and briefly recall some sufficient conditions for a periodic solution of the Euler-Lagrange equation to be either a directional, a weak, or a strong local…

Mathematical Physics · Physics 2022-01-05 Marco Fenucci

It is known that minimal Lagrangians in K\"ahler--Einstein manifolds of non-positive scalar curvature are linearly stable under Hamiltonian deformations. We prove that they are also stable under the Lagrangian mean curvature flow, and…

Differential Geometry · Mathematics 2024-06-10 Ping-Hung Lee , Chung-Jun Tsai

In this paper we mainly study the type II singularities of the mean curvature flow from a symplectic surface or from an almost calibrated Lagrangian surface in a K \"ahler-Einstein surface. We show the relation between the maximum of the…

Differential Geometry · Mathematics 2008-02-05 Xiaoli Han , Jiayu Li

In this article, we study the ramification of the Gauss map of complete minimal surfaces in R^m on annular ends. This work is a continuation of previous work of Dethloff-Ha. We thus give an improvement of the results on annular ends of…

Differential Geometry · Mathematics 2014-11-12 Gerd Dethloff , Pham Hoang Ha , Pham Duc Thoan

We obtain improved local well-posedness results for the Lorentzian timelike minimal surface equation. In dimension $d=3$, for a surface of arbitrary co-dimension, we show a gain of $1/3$ derivative regularity compared to a generic equation…

Analysis of PDEs · Mathematics 2025-04-03 Georgios Moschidis , Igor Rodnianski

It is a well known phenomenon that many classical minimal surfaces in Euclidean space also exist with higher dihedral symmetry. More precisely, these surfaces are solutions to free boundary problems in a wedge bounded by two vertical planes…

Differential Geometry · Mathematics 2024-01-02 Ramazan Yol

We introduce the notion of a minimal Lagrangian connection on the tangent bundle of a manifold and classify all such connections in the case where the manifold is a compact oriented surface of non-vanishing Euler characteristic. Combining…

Differential Geometry · Mathematics 2020-03-04 Thomas Mettler