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arXiv 1607.07563math.PR
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分支布朗运动、中曲率流与混合区运动

Branching Brownian Motion, mean curvature flow and the motion of hybrid zones

Alison Etheridge, Nic Freeman, Sarah Penington

摘要:

我们提供了一个众所周知的Allen-Cahn方程和中曲率流的特殊情况之间的连接的概率证明。然后,我们证明了相应的结果的空间$Λ$ -弗莱明-维奥特过程的选择,其中选择的选择机制是什么在人口遗传学中被称为混合区的模型的缩放限制。我们的证明将利用一个系统的分支(和合并)的随机游走,这是在其本身的权利一些利益的对偶。

英文摘要:

We provide a probabilistic proof of a well known connection between a special case of the Allen-Cahn equation and mean curvature flow. We then prove a corresponding result for scaling limits of the spatial $Λ$-Fleming-Viot process with selection, in which the selection mechanism is chosen to model what are known in population genetics as hybrid zones. Our proofs will exploit a duality with a system of branching (and coalescing) random walkers which is of some interest in its own right.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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