A Weierstrass Representation Formula for Discrete Harmonic Surfaces

A discrete harmonic surface is a trivalent graph that satisfies the balancing condition in the 3-dimensional Euclidean space and achieves energy minimization under local deformations. Given a topological trivalent graph, a holomorphic function, and an associated discrete holomorphic quadratic form,...

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Bibliographic Details
Published in:Symmetry, Integrability and Geometry: Methods and Applications
Date:2024
Main Authors: Kotani, Motoko, Naito, Hisashi
Format: Article
Language:English
Published: Інститут математики НАН України 2024
Online Access:https://nasplib.isofts.kiev.ua/handle/123456789/212161
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Journal Title:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Cite this:A Weierstrass Representation Formula for Discrete Harmonic Surfaces. Motoko Kotani and Hisashi Naito. SIGMA 20 (2024), 034, 15 pages

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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Summary:A discrete harmonic surface is a trivalent graph that satisfies the balancing condition in the 3-dimensional Euclidean space and achieves energy minimization under local deformations. Given a topological trivalent graph, a holomorphic function, and an associated discrete holomorphic quadratic form, a version of the Weierstrass representation formula for discrete harmonic surfaces in the 3-dimensional Euclidean space is proposed. By using the formula, a smooth converging sequence of discrete harmonic surfaces is constructed, and its limit is a classical minimal surface defined with the same holomorphic data. As an application, we have a discrete approximation of the Enneper surface.
ISSN:1815-0659