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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

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 of general type in Euclidean 4-space are characterized with the conditions that the ellipse of curvature at any point is centered at this point and has two different principal axes. Any minimal surface of general type…

Differential Geometry · Mathematics 2016-09-07 Georgi Ganchev , Krasimir Kanchev

It is known that any maximal space-like surface without isotropic points in the four-dimensional pseudo-Euclidean space with neutral metric admits locally geometric parameters which are special case of isothermal parameters. With respect to…

Differential Geometry · Mathematics 2019-06-25 Georgi Ganchev , Krasimir Kanchev

The infinite many symmetries of Davey-Stewartson (DS) system are closely connected to the integrable deformations of surfaces in a four-dimensional space. In this paper, we give a direct algorithm to construct the expression of the DS…

Exactly Solvable and Integrable Systems · Physics 2022-05-17 G. Yi , X. Liao

We give a Weierstrass type representation for semi-discrete minimal surfaces in Euclidean 3-space. We then give explicit parametrizations of various smooth, semi-discrete and fully-discrete catenoids, determined from either variational or…

Differential Geometry · Mathematics 2017-09-22 Wayne Rossman , Masashi Yasumoto

In this paper, the Weierstrass technique for harmonic maps S^2 -> CP^(N-1) is employed in order to obtain surfaces immersed in multidimensional Euclidean spaces. It is shown that if the CP^(N-1) model equations are defined on the sphere S^2…

Differential Geometry · Mathematics 2015-05-13 A. M. Grundland , I. Yurdusen

We give a local representation for the pseudoholomorphic surfaces in Euclidean spheres in terms of holomorphic data. Similar to the case of the generalized Weierstrass representation of Hoffman and Osserman, we assign such a surface in…

Differential Geometry · Mathematics 2015-08-14 M. Dajczer , Th. Vlachos

We construct new integrable systems to present Weierstrass type representations for spacelike surfaces whose mean curvature vector $\mathbf{H}$ satisfies the null condition $\langle \mathbf{H}, \mathbf{H} \rangle=0$ in the four dimensional…

Differential Geometry · Mathematics 2022-02-22 Hojoo Lee

The purpose of this short note is to relate a representation formula due to the Author and P. Romon for Lagrangian surfaces (see math.DG/0009202) to a more general Weierstrass representation type formula found by Konopelchenko for surfaces…

Differential Geometry · Mathematics 2007-05-23 Frederic Helein

A study of the generalized Weierstrass system which can be used to induce mean curvature surfaces in three-dimensional Euclidean space is presented.

Mathematical Physics · Physics 2010-02-04 P Bracken

A new approach is proposed for study structure and properties of the total squared mean curvature $W$ of surfaces in ${\bf R}^3$. It is based on the generalized Weierstrass formulae for inducing surfaces. The quantity $W$ (Willmore…

dg-ga · Mathematics 2008-02-03 B. G. Konopelchenko , I. A. Taimanov

The Moutard transform is constructed for the solutions of the Davey-Stewartson II equation. It is geometrically interpreted using the spinor (Weierstrass) representation of surfaces in four-dimensional Euclidean space. Using the Moutard…

Exactly Solvable and Integrable Systems · Physics 2022-08-30 Iskander A. Taimanov

In the present paper which a sequel to dg-ga/9511005 and dg-ga//9610013 a global Weierstrass representation of an arbitrary closed oriented surface of genus $\geq 1$ in the the three-space is constructed. The Weierstrass spectrum of a torus…

dg-ga · Mathematics 2007-05-23 Iskander A. Taimanov

We consider the local theory of constant mean curvature surfaces that satisfy one or two integrable boundary conditions and determine the corresponding potentials for the generalized Weierstrass representation.

Differential Geometry · Mathematics 2024-12-09 Martin Kilian

We obtain variational formulas for holomorphic objects on Riemann surfaces with respect to arbitrary local coordinates on the moduli space of complex structures. These formulas are written in terms of a canonical object on the moduli space…

Algebraic Geometry · Mathematics 2015-06-15 Alexander Odesskii

We construct large families of harmonic morphisms which are holomorphic with respect to Hermitian structures by finding heierarchies of Weierstrass-type representations. This enables us to find new examples of complex-valued harmonic…

dg-ga · Mathematics 2008-02-03 P. Baird , J. C. Wood

In this note we prove a Weierstrass representation formula for pluriminimal submanifolds of euclidean spaces. We use this formula to produce new families of examples of pluriminimal submanifolds. We also prove that any affine algebraic…

Differential Geometry · Mathematics 2007-05-23 C. Arezzo , G. P. Pirola , M. Solci

Weierstrass representation is a classical parameterization of minimal surfaces. However, two functions should be specified to construct the parametric form in Weierestrass representation. In this paper, we propose an explicit parametric…

Graphics · Computer Science 2010-08-04 Gang Xu , Guozhao Wang

It is known that minimal surfaces in Euclidean space can be represented in terms of holomorphic functions. For example, we have the well-known Weierstrass representation, where part of the holomorphic data is chosen to be the stereographic…

Differential Geometry · Mathematics 2021-09-28 Luiz C. B. da Silva