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Related papers: Minimal Lagrangian surfaces in $\mathbb{C}P^2$ via…

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In this note, we present a new look at translationally equivariant minimal Lagrangian surfaces in the complex projective plane via the loop group method.

Differential Geometry · Mathematics 2015-02-18 Josef F. Dorfmeister , Hui Ma

We extend the techniques introduced in \cite{DoMaB1} for contractible Riemann surfaces to construct minimal Lagrangian immersions from arbitrary Riemann surfaces into $\mathbb{C}P^2$ via the loop group method. Based on the potentials of…

Differential Geometry · Mathematics 2024-05-07 Josef F. Dorfmeister , Hui Ma

We study minimal Lagrangian surfaces in the complex hyperbolic quadric. We show that minimality of a Lagrangian surface is characterized by a loop of flat connections, which yields an associated $\mathbb S^1$-family of isometric…

Differential Geometry · Mathematics 2026-05-19 Shimpei Kobayashi , Sihao Zeng

We develop a loop group (DPW-type) representation for minimal Lagrangian surfaces in the complex quadric $Q_{2}\cong \mathbb S^{2}\times \mathbb S^{2}$, formulated via a flat family of connections $\{\nabla^\lambda\}_{\lambda\in \mathbb…

Differential Geometry · Mathematics 2026-02-03 Shimpei Kobayashi , Sihao Zeng

In this paper we investigate surfaces in $\mathbb C P^2$ without complex points and characterize the minimal surfaces without complex points and the minimal Lagrangian surfaces by Ruh-Vilms type theorems. We also discuss the liftability of…

Differential Geometry · Mathematics 2019-09-10 Josef F. Dorfmeister , Shimpei Kobayashi , Hui Ma

We propose the study of a conformally invariant functional for surfaces of complex projective plane which is closely related to the classical Willmore functional. We show that minimal surfaces of complex projective plane are critical for…

Differential Geometry · Mathematics 2007-05-23 Sebastian Montiel , Francisco Urbano

In this article we study minimal flat Lorentzian surfaces in Lorentzian complex space forms. First we prove that, for minimal flat Lorentzian surfaces in a Lorentzian complex form, the equation of Ricci is a consequence of the equations of…

Differential Geometry · Mathematics 2013-07-26 Bang-Yen Chen

We present a method to construct a large family of Lagrangian surfaces in complex Euclidean plane by using Legendre curves in the 3-sphere and in the anti de Sitter 3-space or, equivalently, by using spherical and hyperbolic curves,…

Differential Geometry · Mathematics 2012-12-04 Ildefonso Castro , Bang-yen Chen

First we solve the problem of finding minimal degree families on toric surfaces by reducing it to lattice geometry. Then we describe how to find minimal degree families on, more generally, rational complex projective surfaces.

Algebraic Geometry · Mathematics 2021-03-09 Niels Lubbes , Josef Schicho

We obtain some equations for Hamiltonian-minimal Lagrangian surfaces in CP^2 and give their particular solutions in the case of tori.

Differential Geometry · Mathematics 2007-05-23 A. E. Mironov

The differential system for minimal Lagrangian surfaces in a $2_{\mathbb{C}}$-dimensional, non-flat, complex space form is an elliptic system defined on the bundle of oriented Lagrangian planes. This is a 6-symmetric space associated with…

Differential Geometry · Mathematics 2014-09-05 Joe S. Wang

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

We introduce a new method to construct a large family of Lagrangian surfaces in complex Euclidean plane by means of two planar curves making use of their usual product as complex functions and integrating the Hermitian product of their…

Differential Geometry · Mathematics 2018-02-12 Ildefonso Castro , Ana M. Lerma

The Riemannian product of two hyperbolic planes of constant Gaussian curvature -1 has a natural K\"ahler structure. In fact, it can be identified with the complex hyperbolic quadric of complex dimension two. In this paper we study…

Differential Geometry · Mathematics 2025-08-29 Dong Gao , Joeri Van der Veken , Anne Wijffels , Botong Xu

We show that the Clifford torus and the totally geodesic real projective plane RP^2 in the complex projective plane CP^2 are the unique Hamiltonian stable minimal Lagrangian compact surfaces of CP^2 with genus less than or equal to 4, when…

Differential Geometry · Mathematics 2007-05-23 Francisco Urbano

We study Hamiltonian stationary Lagrangian surfaces in C^2, i.e. Lagrangian surfaces in C^2 which are stationary points of the area functional under smooth Hamiltonian variations. Using loop groups, we propose a formulation of the equation…

Differential Geometry · Mathematics 2007-05-23 Frederic Helein , Pascal Romon

We establish connections between contact isometry groups of certain contact manifolds and compactly supported symplectomorphism groups of their symplectizations. We apply these results to investigate the space of symplectic embeddings of…

Symplectic Geometry · Mathematics 2013-06-03 Richard Hind , Martin Pinsonnault , Weiwei Wu

The classical result of describing harmonic maps from surfaces into symmetric spaces of reductive Lie groups states that the Maurer-Cartan form with an additional parameter, the so-called loop parameter, is integrable for all values of the…

Differential Geometry · Mathematics 2019-02-06 Josef F. Dorfmeister , Walter Freyn , Shimpei Kobayashi , Erxiao Wang

In this paper we continue our study of equivariant minimal Lagrangian surfaces in $\mathbb{C} P^2$, characterizing the rotationally equivariant cases and providing explicit formulae for relevant geometric quantities of translationally…

Differential Geometry · Mathematics 2015-03-17 Josef F. Dorfmeister , Hui Ma

We study manifolds with split-complex structure and apply some general results to the study of Lorentz surfaces. In particular, we apply our results to timelike minimal immersions. The conformal realization of these surfaces is obtained…

Differential Geometry · Mathematics 2007-05-23 Jun-ichi Inoguchi , Magdalena Toda
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