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arXiv 2609.03187math.PR

带矩约束的鞅运输问题的对偶性

Duality for a Martingale Transport Problem with Moment Constraints

  • HSE University(高等经济大学)
  • Vega Institute Foundation(维加基金会)
  • Lomonosov Moscow State University(莫斯科国立罗蒙诺索夫大学)

机构由 AI 辅助整理,请以论文原文为准。

Alexander V. Kolesnikov, Aleksandra Novikova, Kirill Sokolov

AI总结:

该研究针对第二边缘分布由有限矩约束指定的弱鞅最优运输问题,推导有限维对偶公式并证明无对偶间隙,还明确了最优鞅耦合的结构及其与Bass鞅的关系。

AI中文摘要:

我们考虑与Benamou-Brenier公式的鞅类似物相关的弱鞅最优运输问题。与经典情形不同,第二边缘分布未给定,仅通过特定形式的有限个矩约束来指定。针对该问题,我们推导了有限维对偶公式,并证明在约束向量的特定内部条件下不存在对偶间隙。此外,我们描述了最优鞅耦合的结构及其与Bass鞅的关系。

英文摘要:

We consider a weak martingale optimal transport problem related to the martingale analogue of the Benamou--Brenier formula. In contrast to the classical setting, the second marginal is not given, but specified only through a finite number of moment constraints of a particular form. For this problem, we derive a finite-dimensional dual formulation and prove the absence of a duality gap under the specified interiority condition on the constraint vector. In addition, we describe the structure of the optimal martingale coupling and its relation to Bass martingales.

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