Equivalence of weak solution concepts for mean curvature flow
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arXiv
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866911379924975616 |
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| author | Laux, Tim Ullrich, Anton |
| author_facet | Laux, Tim Ullrich, Anton |
| contents | We provide a connection between weak solution concepts of mean curvature flow. On the one side we have the viscosity solution which is based on the comparison principle. On the other, variational solutions, which are combined Brakke flows and distributional solutions. We prove that if one has a foliation by variational solutions, then the resulting function is the unique viscosity solution.
This answers an open question suggested by the work of Evans and Spruck [J. Geom. Anal., 5(1), 1995] and the authors [J. Geom. Anal., 34(12), 2024]. These results show that almost every level set of the viscosity solution is a variational solution. Thus, we establish the equivalence of these solution concepts. Moreover, we show the generic uniqueness of variational solutions. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2510_16478 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Equivalence of weak solution concepts for mean curvature flow Laux, Tim Ullrich, Anton Analysis of PDEs 53E10 (Primary), 35D30, 35D40 (Secondary) We provide a connection between weak solution concepts of mean curvature flow. On the one side we have the viscosity solution which is based on the comparison principle. On the other, variational solutions, which are combined Brakke flows and distributional solutions. We prove that if one has a foliation by variational solutions, then the resulting function is the unique viscosity solution. This answers an open question suggested by the work of Evans and Spruck [J. Geom. Anal., 5(1), 1995] and the authors [J. Geom. Anal., 34(12), 2024]. These results show that almost every level set of the viscosity solution is a variational solution. Thus, we establish the equivalence of these solution concepts. Moreover, we show the generic uniqueness of variational solutions. |
| title | Equivalence of weak solution concepts for mean curvature flow |
| topic | Analysis of PDEs 53E10 (Primary), 35D30, 35D40 (Secondary) |
| url | https://arxiv.org/abs/2510.16478 |