Area preserving Combescure transformations
arXiv:2402.16753 · doi:10.1007/s00025-024-02346-6
Abstract
Motivated by the design of flexible nets, we classify all nets of arbitrary size m x n that admit a continuous family of area-preserving Combescure transformations. There are just two different classes. The nets in the first class are special cases of cone nets that have been recently studied by Kilian, Mueller, and Tervooren. The second class consists of Koenigs nets having a Christoffel dual with the same areas of corresponding faces. We apply isotropic metric duality to get a new class of flexible nets in isotropic geometry. We also study the smooth analogs of the introduced classes.
arXiv comment25 pages, 18 figures
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