The existence of geodesics in Wasserstein spaces over path groups and loop groups

28 Feb 2018 Shao Jinghai

In this work we prove the existence and uniqueness of the optimal transport map for $L^p$-Wasserstein distance with $p>1$, and particularly present an explicit expression of the optimal transport map for the case $p=2$. As an application, we show the existence of geodesics connecting probability measures satisfying suitable condition on path groups and loop groups...

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