English

Two dimensional liquid crystal droplet problem with tangential boundary condition

Analysis of PDEs 2022-02-02 v1

Abstract

This paper studies a shape optimization problem which reduces to a nonlocal free boundary problem involving perimeter. It is motivated by a study of liquid crystal droplets with a tangential anchoring boundary condition and a volume constraint. We establish in 2D the existence of an optimal shape that has two cusps on the boundary. We also prove the boundary of the droplet is a chord-arc curve with its normal vector field in the VMO space. In fact, the boundary curves of such droplets belong to the so-called Weil-Petersson class. In addition, the asymptotic behavior of the optimal shape when the volume becomes extremely large or small is also studied.

Keywords

Cite

@article{arxiv.2106.10668,
  title  = {Two dimensional liquid crystal droplet problem with tangential boundary condition},
  author = {Zhiyuan Geng and Fanghua Lin},
  journal= {arXiv preprint arXiv:2106.10668},
  year   = {2022}
}
R2 v1 2026-06-24T03:23:53.773Z