Convergence of Perturbed Allen Cahn Equations to Forced Mean Curvature Flow

Luca Mugnai, and Matthias Röger
(Please use for correspondence this email).

Submission date: 10. Feb. 2009
Pages: 25
MSC-Numbers: 53C44, 35K55, 49Q15
Keywords and phrases: Allen-Cahn equation, sharp interface limits, motion by mean curvature
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Abstract:
We study perturbations of the Allen--Cahn equation and prove the convergence to forced mean curvature flow in the sharp interface limit. We allow for perturbations that are square-integrable with respect to the diffuse surface area measure. We give a suitable generalized formulation for forced mean curvature flow and apply previous results for the Allen--Cahn action functional. Finally we discuss some applications.