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Federer's
characterization of sets of finite perimeter in metric
spaces
Panu Lahti |
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Vol. 13 (2020), No. 5, 1501–1519
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Abstract |
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Federer’s characterization of sets of finite perimeter states (in Euclidean spaces) that a set is of finite perimeter if and only if the measure-theoretic boundary of the set has finite Hausdorff measure of codimension 1. In complete metric spaces that are equipped with a doubling measure and support a Poincaré inequality, the “only if” direction was shown by Ambrosio (2002). By applying fine potential theory in the case , we prove that the “if” direction holds as well. |
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Keywords
metric measure space, set of finite perimeter, Federer's
characterization, measure-theoretic boundary, codimension-1
Hausdorff measure, fine topology
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Mathematical Subject Classification 2010
Primary: 30L99, 31E05, 26B30
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Milestones
Received: 27 April 2018
Revised: 3 January 2019
Accepted: 12 May 2019
Published: 27 July 2020
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Authors |
| Panu Lahti | |
| Academy of Mathematics and Systems
Science Chinese Academy of Sciences Beijing China |
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