English

A Capillary Surface with No Radial Limits

Differential Geometry 2018-03-16 v1

Abstract

In 1996, Kirk Lancaster and David Siegel investigated the existence and behavior of radial limits at a corner of the boundary of the domain of solutions of capillary and other prescribed mean curvature problems with contact angle boundary data. In Theorem 3, they provide an example of a capillary surface in a unit disk DD which has no radial limits at (0,0)D.(0,0)\in\partial D. In their example, the contact angle (γ\gamma) cannot be bounded away from zero and π.\pi. Here we consider a domain Ω\Omega with a convex corner at (0,0)(0,0) and find a capillary surface z=f(x,y)z=f(x,y) in Ω×R\Omega\times\mathbb{R} which has no radial limits at (0,0)Ω(0,0)\in\partial\Omega such that γ\gamma is bounded away from 00 and π.\pi.

Cite

@article{arxiv.1702.01656,
  title  = {A Capillary Surface with No Radial Limits},
  author = {Colm Mitchell},
  journal= {arXiv preprint arXiv:1702.01656},
  year   = {2018}
}

Comments

6 pages, 2 figures

R2 v1 2026-06-22T18:10:24.296Z