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arXiv 1905.04574math.PR
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实直线上鞅最优输运问题的连续性

Continuity of the martingale optimal transport problem on the real line

Johannes Wiesel

摘要:

我们表明连续性的鞅最优输运优化问题作为其边缘的功能。这是通过估计的投影在嵌套/因果Wasserstein距离的任意耦合到一组鞅耦合具有相同的边缘。作为推论,我们得到了[Beiglboeck,M.,& Juillet,N.(2016年)。关于边际鞅约束下的一个最优输运问题。安·普罗巴布,44(2016),no. 1,42106]用于多项式增长的费用函数。

英文摘要:

We show continuity of the martingale optimal transport optimisation problem as a functional of its marginals. This is achieved via an estimate on the projection in the nested/causal Wasserstein distance of an arbitrary coupling on to the set of martingale couplings with the same marginals. As a corollary we obtain an independent proof of sufficiency of the monotonicity principle established in [Beiglboeck, M., & Juillet, N. (2016). On a problem of optimal transport under marginal martingale constraints. Ann. Probab., 44 (2016), no. 1, 42106] for cost functions of polynomial growth.

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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