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arXiv 2001.04914math.AP
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二维双调和Alt-Caffarelli问题

The Biharmonic Alt-Caffarelli Problem in 2D

Marius Müller

摘要:

研究了二维空间中具有Navier边界条件的双调和算子的Alt-Caffarelli型变分自由边界问题.证明了极小元的内部C2-正则性,并证明了极小元的自由边界由多个C2-超曲面组成.借助于这些结果,我们可以证明极小化器一般不是唯一的。我们研究了极小元的径向对称性,并计算了径向解。

英文摘要:

We examine a variational free boundary problem of Alt-Caffarelli type for the biharmonic operator with Navier boundary conditions in two dimensions. We show interior C2-regularity of minimizers and that the free boundary consists of finitely many C2-hypersurfaces. With the aid of these results, we can prove that minimizers are in general not unique. We investigate radial symmetry of minimizers and compute radial solutions explicitly.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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