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This paper is devoted to a study of the connection between the immersion functions of two-dimensional surfaces in Euclidean or hyperbolic spaces and classical orthogonal polynomials. After a brief description of the soliton surfaces…

Mathematical Physics · Physics 2019-12-24 Vincent Chalifour , Alfred Michel Grundland

We survey structure-preserving discretizations of minimal surfaces in Euclidean space. Our focus is on a discretization defined via parallel face offsets of polyhedral surfaces, which naturally leads to a notion of vanishing mean curvature…

Differential Geometry · Mathematics 2026-04-14 Wai Yeung Lam , Masashi Yasumoto

The techniques used in this paper are based on the exterior calculus of Maurer-Cartan forms, and Weingarten surfaces are used to illustrate the methods that apply to quadratic exterior equations with constant coefficients. Isothermic {\it…

Differential Geometry · Mathematics 2013-02-22 Magdalena Toda

Using the gauge theoretic approach for Lie applicable surfaces, we characterise certain subclasses of surfaces in terms of polynomial conserved quantities. These include isothermic and Guichard surfaces of conformal geometry and…

Differential Geometry · Mathematics 2019-03-11 Francis E. Burstall , Udo Hertrich-Jeromin , Mason Pember , Wayne Rossman

A discrete harmonic surface is a trivalent graph which satisfies the balancing condition in the 3-dimensional Euclidean space and achieves energy minimizing under local deformations. Given a topological trivalent graph, a holomorphic…

Differential Geometry · Mathematics 2024-04-18 Motoko Kotani , Hisashi Naito

Minimal surfaces with planar curvature lines are classical geometric objects, having been studied since the late 19th century. In this paper, we revisit the subject from a different point of view. After calculating their metric functions…

Differential Geometry · Mathematics 2018-05-16 Joseph Cho , Yuta Ogata

We prove that the Gauss curvature and the curvature of the normal connection of any minimal surface in the four dimensional Euclidean space satisfy an inequality, which generates two classes of minimal surfaces: minimal surfaces of general…

Differential Geometry · Mathematics 2008-06-23 Georgi Ganchev , Velichka Milousheva

We consider the extrinsic geometry of surfaces in simply isotropic space, a three-dimensional space equipped with a rank 2 metric of index zero. Since the metric is degenerate, a surface normal cannot be unequivocally defined based on…

Differential Geometry · Mathematics 2020-11-13 Alev Kelleci , Luiz C. B. da Silva

We prove a sharp Schwarz type inequality for the Weierstrass- Enneper representation of the minimal surfaces. It states the following. If $F:\mathbf{D}\to \Sigma$ is a conformal harmonic parameterization of a minimal disk $\Sigma$, where…

Complex Variables · Mathematics 2022-07-05 David Kalaj

In this paper, we show that any biharmonic simple rotational surface in the four-dimensional Euclidean space is minimal. The proof is based on reducing the biharmonic equation to a system of ordinary differential equations for the profile…

Differential Geometry · Mathematics 2026-05-18 Shun Maeta

Quaternionic analysis, which describes conformal maps from Riemann surfaces into $\mathbb{R}^3$ or $\mathbb{R}^4$, is extended to weakly conformal maps. As a consequence we present a new proof that on any compact Riemann surface $X$ the…

Differential Geometry · Mathematics 2025-06-24 Ross Ogilvie , Martin Ulrich Schmidt

In this paper we will construct a Weierstrass type representation for minimal surfaces in 4-dimensional Lorentzian Damek-Ricci spaces and we give some examples of such surfaces.

Differential Geometry · Mathematics 2015-01-15 Adriana A. Cintra , Francesco Mercuri , Irene I. Onnis

The paper presents a generalized Weierstrass representation for pseudospherical surfaces in terms of 3x3 matrices, using moving frames and loop group decompositions. The construction of all such surfaces, starting from a given…

Differential Geometry · Mathematics 2007-05-23 Magdalena Toda

Complete control of electromagnetic fields requires particles that exhibit bianisotropic constituent parameters (i.e. permittivity, permeability, and chirality). Here, methods to analyze and synthesize two-dimensional, bianisotropic…

Optics · Physics 2014-04-18 Carl Pfeiffer , Anthony Grbic

A Laguerre geometric local characterization is given of L-minimal surfaces and Laguerre deformations (T-transforms) of L-minimal isothermic surfaces in terms of the holomorphicity of a quartic and a quadratic differential. This is used to…

Differential Geometry · Mathematics 2017-06-15 Emilio Musso , Lorenzo Nicolodi

In this paper, we will give an Enneper-type representation for spacelike and timelike minimal surfaces in the Lorentz-Minkowski space $L^{3}$, using the complex and the paracomplex analysis (respectively). Then, we exhibit various examples…

Differential Geometry · Mathematics 2017-03-21 Irene I. Onnis , Adriana A. Cintra

In this paper we construct an example of a complete immersed minimal surface in $\mathbb{R}^3$ of genus one with two embedded catenoid-type ends, one Enneper-type end and total Gauss curvature $-16\pi.$ The proof of the existence of this…

Differential Geometry · Mathematics 2020-01-01 JosÉ Antonio M. Vilhena

The Bj\"orling problem amounts to the construction of a minimal surface from a real-analytic curve with a given real-analytic normal vector field. We approximate that solution locally by discrete minimal surfaces as special discrete…

Differential Geometry · Mathematics 2024-03-21 Ulrike Bücking , Daniel Matthes

Generalized Weierstrass representations for generic surfaces conformally immersed into four-dimensional Euclidean and pseudo-Euclidean spaces of different signatures are presented. Integrable deformations of surfaces in these spaces…

Differential Geometry · Mathematics 2007-05-23 B. G. Konopelchenko

We study minimal Lorentz surfaces in the pseudo-Euclidean 4-space with neutral metric whose first normal space is two-dimensional and whose Gauss curvature $K$ and normal curvature $\varkappa$ satisfy the inequality $K^2-\varkappa^2 >0$.…

Differential Geometry · Mathematics 2019-08-28 Yana Aleksieva , Velichka Milousheva