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arXiv · 1501.02587

Isothermic triangulated surfaces

Wai Yeung Lam·Ulrich Pinkall
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Abstract

We found a class of triangulated surfaces in Euclidean space which have similar properties as isothermic surfaces in Differential Geometry. We call a surface isothermic if it admits an infinitesimal isometric deformation preserving the mean curvature integrand locally. We show that this class is M\"{o}bius invariant. Isothermic triangulated surfaces can be characterized either in terms of circle patterns or based on conformal equivalence of triangle meshes. This definition generalizes isothermic quadrilateral meshes. A consequence is a discrete analog of minimal surfaces. Here the Weierstrass data needed to construct a discrete minimal surface consist of a triangulated plane domain and a discrete harmonic function.

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Wai Yeung Lam, Ulrich Pinkall. 2015-01-12. Isothermic triangulated surfaces. https://arxiv.org/abs/1501.02587

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