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arXiv 2109.01697math.MGmath-phmath.COmath.MP
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正方形格点上的双气泡问题

The double-bubble problem on the square lattice

Manuel Friedrich, Wojciech Górny, Ulisse Stefanelli

AI总结:

本文研究正方形格点上的双气泡问题,刻画两个有限点集最小周长构型的精细几何,计算最优周长并证明极小元的渐近 Wulff 形状。

摘要:

我们研究正方形格点上两个有限点集的最小周长构型。这对应于经典双气泡问题的格点版本。我们详细描述了极小元的精细几何,并在某些参数范围内,将最优周长计算为点集大小的函数。此外,我们对两个通常并不唯一的极小元之间的差异给出了一个尖锐界,并利用它在点集大小放大时严格识别它们的 Wulff 形状。

英文摘要:

We investigate minimal-perimeter configurations of two finite sets of points on the square lattice. This corresponds to a lattice version of the classical double-bubble problem. We give a detailed description of the fine geometry of minimisers and, in some parameter regime, we compute the optimal perimeter as a function of the size of the point sets. Moreover, we provide a sharp bound on the difference between two minimisers, which are generally not unique, and use it to rigorously identify their Wulff shape, as the size of the point sets scales up.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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