English

The Biharmonic Alt-Caffarelli Problem in 2D

Analysis of PDEs 2020-01-15 v1

Abstract

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.

Keywords

Cite

@article{arxiv.2001.04914,
  title  = {The Biharmonic Alt-Caffarelli Problem in 2D},
  author = {Marius Müller},
  journal= {arXiv preprint arXiv:2001.04914},
  year   = {2020}
}

Comments

43 pages, 1 figure

R2 v1 2026-06-23T13:11:05.298Z