Global minimizers for a two-sided biharmonic Alt-Caffarelli problem
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arXiv
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| Format: | Preprint |
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2026
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| _version_ | 1866915732297613312 |
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| author | Grunau, Hans-Christoph Müller, Marius |
| author_facet | Grunau, Hans-Christoph Müller, Marius |
| contents | We study global minimizers of biharmonic analogues of the Alt-Caffarelli functional. It turns out that half-space solutions are global minimizers for the two-sided Alt-Caffarelli functional, but not in the one-sided case. In addition, we identify a further class of global minimizers, all of which have constant Laplacian. Recent work by J. Lamboley and M. Nahon reduces potential global minimizers in dimension two to four possible categories. Our work shows that three of these categories persist in any dimension and are in fact global minimizers.
Moreover, we show that minimizers of the two-sided biharmonic Alt-Caffarelli problem do in general not satisfy a partial differential equation, not even with a signed measure as right-hand-side. This is in sharp contrast to the corresponding one-sided problem. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2601_10297 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Global minimizers for a two-sided biharmonic Alt-Caffarelli problem Grunau, Hans-Christoph Müller, Marius Analysis of PDEs We study global minimizers of biharmonic analogues of the Alt-Caffarelli functional. It turns out that half-space solutions are global minimizers for the two-sided Alt-Caffarelli functional, but not in the one-sided case. In addition, we identify a further class of global minimizers, all of which have constant Laplacian. Recent work by J. Lamboley and M. Nahon reduces potential global minimizers in dimension two to four possible categories. Our work shows that three of these categories persist in any dimension and are in fact global minimizers. Moreover, we show that minimizers of the two-sided biharmonic Alt-Caffarelli problem do in general not satisfy a partial differential equation, not even with a signed measure as right-hand-side. This is in sharp contrast to the corresponding one-sided problem. |
| title | Global minimizers for a two-sided biharmonic Alt-Caffarelli problem |
| topic | Analysis of PDEs |
| url | https://arxiv.org/abs/2601.10297 |