Domains in Metric Measure Spaces with Boundary of Positive Mean Curvature, and the Dirichlet Problem for Functions of Least Gradient
Domains in Metric Measure Spaces with Boundary of Positive Mean Curvature, and the Dirichlet Problem for Functions of Least Gradient
复制标题
具有正平均曲率边界的度量空间中的域以及最小梯度函数的狄利克雷问题
DOI:
10.1007/s12220-018-00108-9
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Speight, Gareth
中科院分区:
文献类型:
--
作者:
Lahti, Panu;Malý, Lukáš;Shanmugalingam, Nageswari;Speight, Gareth
We study the geometry of domains in complete metric measure spaces equipped with a doubling measure supporting a 1-Poincaré inequality. We propose a notion of domain with boundary of positive mean curvature and prove that, for such domains, there is always a solution to the Dirichlet problem for least gradients with continuous boundary data. Here least gradient is defined as minimizing total variation (in the sense of BV functions), and boundary conditions are satisfied in the sense that the boundary trace of the solution exists and agrees with the given boundary data. This extends the result of Sternberg et al.(J Reine Angew Math 430: 35–60, 1992) to the non-smooth setting. Via counterexamples, we also show that uniqueness of solutions and existence of continuous solutions can fail, even in the weighted Euclidean setting with Lipschitz weights.
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DOI:
10.2422/2036-2145.201511_007
发表时间:
2015
期刊:
arXiv: Metric Geometry
影响因子:
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作者:
Luk'avs Mal'y;N. Shanmugalingam;Marie A. Snipes
通讯作者:
Marie A. Snipes
DOI:
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发表时间:
2014
期刊:
影响因子:
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作者:
J. M. Ruiz;J. Rossi;S. S. D. León
通讯作者:
S. S. D. León
DOI:
--
发表时间:
2014
期刊:
影响因子:
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作者:
H. Hakkarainen;R. Korte;P. Lahti;N. Shanmugalingam
通讯作者:
N. Shanmugalingam
DOI:
--
发表时间:
1982
期刊:
影响因子:
--
作者:
E. Barozzi;U. Massari
通讯作者:
U. Massari
DOI:
--
发表时间:
1992
期刊:
影响因子:
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作者:
Peter Sternberg;Graham Williams;W. Ziemer
通讯作者:
W. Ziemer