Abstract
In this paper, we study the parabolic Allen–Cahn equation, which has slow diffusion and fast reaction, with a potential K. In particular, the convergence of solutions to a generalized Brakke’s mean curvature flow is established in the limit of a small parameter \( \varepsilon \rightarrow 0\). More precisely, we show that a sequence of Radon measures, associated to energy density of solutions to the parabolic Allen–Cahn equation, converges to a weight measure of an integral varifold. Moreover, the limiting varifold evolves by a vector which is the difference between the mean curvature vector and the normal part of \({\nabla K}/{2K}\).
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The authors are grateful to the referees for their helpful comments and suggestions that improve the presentation of this paper.
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Communicated by F.H. Lin.
Qi was partially supported by a Simons Collaboration grant, Grant No. 525042, and Zheng by NSFC Grants 11171126, 11571131. The authors thank Pengfei Guan for stimulating discussion.
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Qi, Y., Zheng, GF. Convergence of solutions of the weighted Allen–Cahn equations to Brakke type flow. Calc. Var. 57, 133 (2018). https://doi.org/10.1007/s00526-018-1409-8
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DOI: https://doi.org/10.1007/s00526-018-1409-8