An augmented Lagrangian approach to Wasserstein gradient flows and applications
An augmented Lagrangian approach to Wasserstein gradient flows and applications
复制标题
Wasserstein 梯度流的增强拉格朗日方法及其应用
DOI:
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发表时间:
2016
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通讯作者:
M. Laborde
中科院分区:
文献类型:
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作者:
J. Benamou;G. Carlier;M. Laborde
Taking advantage of the Benamou-Brenier dynamic formulation of optimal transport, we propose a convex formulation for each step of the JKO scheme for Wasserstein gradient flows which can be attacked by an augmented Lagrangian method which we call the ALG2-JKO scheme. We test the algorithm in particular on the porous medium equation. We also consider a semi implicit variant which enables us to treat nonlocal interactions as well as systems of interacting species. Regarding systems, we can also use the ALG2-JKO scheme for the simulation of crowd motion models with several species.