English

Solutions to a two-dimensional, Neumann free boundary problem

Analysis of PDEs 2017-08-31 v1

Abstract

We explore regularity properties of solutions to a two-phase elliptic free boundary problem near a Neumann fixed boundary in two dimensions. Consider a function u, which is harmonic where it is not zero and satisfies a gradient jump condition weakly along the free boundary. Our main result is that u is Lipschitz continuous up to the Neumann fixed boundary. We also present a numerical exploration of the way in which the free and fixed boundaries interact.

Keywords

Cite

@article{arxiv.1708.09329,
  title  = {Solutions to a two-dimensional, Neumann free boundary problem},
  author = {Sarah Raynor and John A. Gemmer and Gary Moon},
  journal= {arXiv preprint arXiv:1708.09329},
  year   = {2017}
}
R2 v1 2026-06-22T21:28:05.104Z