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arXiv 1806.07415math.AP
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从聚集-扩散到约束相互作用:慢扩散极限下的极小化和梯度流

Aggregation-Diffusion to Constrained Interaction: Minimizers & Gradient Flows in the Slow Diffusion Limit

Katy Craig, Ihsan Topaloglu

摘要:

最近的工作的启发极小和梯度流的约束相互作用的能量,我们证明了这些能量出现的慢扩散极限的著名的聚集扩散能量。我们证明了聚集扩散能的极小值收敛到约束相互作用能的极小值,梯度流收敛到梯度流。我们的结果适用于一系列的相互作用潜力,包括奇异吸引力和排斥吸引力的幂律潜力。在获得慢扩散极限的过程中,我们还扩展了聚集-扩散方程和Wasserstein梯度流的适定性理论,使其可以包含大范围的非凸相互作用势.最后,我们应用我们的研究结果开发一个数值方法约束相互作用能,我们用它来调查开放的问题集值极小。

英文摘要:

Inspired by recent work on minimizers and gradient flows of constrained interaction energies, we prove that these energies arise as the slow diffusion limit of well-known aggregation-diffusion energies. We show that minimizers of aggregation-diffusion energies converge to a minimizer of the constrained interaction energy and gradient flows converge to a gradient flow. Our results apply to a range of interaction potentials, including singular attractive and repulsive-attractive power-law potentials. In the process of obtaining the slow diffusion limit, we also extend the well-posedness theory for aggregation-diffusion equations and Wasserstein gradient flows to admit a wide range of nonconvex interaction potentials. We conclude by applying our results to develop a numerical method for constrained interaction energies, which we use to investigate open questions on set valued minimizers.

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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