arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2001.03185math.OC
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循环费用的多边际最优运输问题

Multi-marginal optimal transportation problem for cyclic costs

Brendan Pass, Adolfo Vargas-Jiménez

摘要:

本文研究了一个多边际最优运输问题,其费用函数为$c(x_{1}, \ldots,x_{m})=\sum_{k=1}^{m-1}|x_{k}-x_{k+1}|^{2} + |x_{m}- F(x_{1})|^{2}$,其中$F: \mathbb{R}^n \rightarrow \mathbb{R}^n$ .当$m=4$,$F$是恒同映射的正倍数,且第一个和最后一个边值关于勒贝格测度绝对连续时,我们建立了Kantorovich问题的任何解都是由一个映射导出的,因此解是唯一的.我们继续表明,这个结果在某种意义上是尖锐的。确切地说,我们展示的例子表明,康托洛维奇解决方案可能集中在一个更高的维度集,如果以下任何一个举行:1)$F$是任何线性映射以外的一个积极的标量多的身份,2)最后的边际是不是绝对连续的勒贝格测度,或3)边际数$m \geq 5$,即使当$F$是恒同映射。

英文摘要:

We study a multi-marginal optimal transportation problem with a cost function of the form $c(x_{1}, \ldots,x_{m})=\sum_{k=1}^{m-1}|x_{k}-x_{k+1}|^{2} + |x_{m}- F(x_{1})|^{2}$, where $F: \mathbb{R}^n \rightarrow \mathbb{R}^n$. When $m=4$, $F$ is a positive multiple of the identity mapping, and the first and last marginals are absolutely continuous with respect to Lebesgue measure, we establish that any solution of the Kantorovich problem is induced by a map; the solution is therefore unique. We go on to show that this result is sharp in a certain sense. Precisely, we exhibit examples showing that Kantorovich solutions may concentrate on a higher dimensional sets if any of the following hold: 1) $F$ is any linear mapping other than a positive scalar multiple of the identity, 2) the last marginal is not absolutely continuous with respect to Lebesgue measure, or 3) the number of marginals $m \geq 5$, even when $F$ is the identity mapping.

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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