A phase field formulation of the Willmore problem

Qiang Du, Chun Liu, Rolf Ryham, Xiaoqiang Wang

Research output: Contribution to journalArticlepeer-review

107 Scopus citations

Abstract

In this paper, we demonstrate, through asymptotic expansions, the convergence of a phase field formulation to model surfaces minimizing the mean curvature energy with volume and surface area constraints. Under the assumption of the existence of a smooth limiting surface, it is shown that the interface of a phase field, which is a critical point of the elastic bending energy, converges to a critical point of the surface energy. Further, the elastic bending energy of the phase field converges to the surface energy and the Lagrange multipliers associated with the volume and surface area constraints remain uniformly bounded. This paper is a first step to analytically justify the numerical simulations performed by Du, Liu and Wang in 2004 to model equilibrium configurations of vesicle membranes.

Original languageEnglish (US)
Pages (from-to)1249-1267
Number of pages19
JournalNonlinearity
Volume18
Issue number3
DOIs
StatePublished - 2005

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Mathematical Physics
  • Physics and Astronomy(all)
  • Applied Mathematics

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