Minimizers for the Thin One‐Phase Free Boundary Problem
Minimizers for the Thin One‐Phase Free Boundary Problem
复制标题
Thin One 的最小化——无相边界问题
DOI:
10.1002/cpa.22011
复制
发表时间:
2021
影响因子:
3
通讯作者:
Sire, Yannick
中科院分区:
文献类型:
--
作者:
Engelstein, Max;Kauranen, Aapo;Prats, Martí;Sakellaris, Georgios;Sire, Yannick
We consider the “thin one‐phase" free boundary problem, associated to minimizing a weighted Dirichlet energy of the function in plus the area of the positivity set of that function in . We establish full regularity of the free boundary for dimensions , prove almost everywhere regularity of the free boundary in arbitrary dimension, and provide content and structure estimates on the singular set of the free boundary when it exists. All of these results hold for the full range of the relevant weight.While our results are typical for the calculus of variations, our approach does not follow the standard one first introduced by Alt and Caffarelli in 1981. Instead, the nonlocal nature of the distributional measure associated to a minimizer necessitates arguments that are less reliant on the underlying PDE. © 2021 Wiley Periodicals LLC.
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DOI:
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发表时间:
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影响因子:
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影响因子:
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