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arXiv 2602.20136math.OCmath.COmath.PR
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关于一个离散的max-plus运输问题

On a discrete max-plus transportation problem

Universidad de Antioquia(安蒂奥基亚大学);Innopolis University(因诺波利斯大学);St.Petersburg Branch of the Steklov Mathematical Institute of the Russian Academy of Sciences(俄罗斯科学院列别杰夫数学研究所圣彼得堡分支);Dipartimento di Matematica, Università di Pisa(比萨大学数学系);HSE University(高等经济学院)

Sergio Mayorga, Eugene Stepanov, Pedro Barrios

AI总结:

本文提出了解决热带最优运输问题的显式算法,指出在特定条件下最优热带计划可能不对应于完美匹配,并证明了解的唯一性罕见。

摘要:

我们提供了一个显式算法,用于求解将通常实数域替换为热带(max-plus)半环的离散Monge-Kantorovich最优质量运输问题的幂等类比。在这种半环中,加法定义为最大值,乘法定义为通常的加法,负无穷和零分别扮演加法和乘法的单位元。此类问题可能自然称为热带或“max-plus”最优运输问题。我们证明,后者(称为最优热带计划)的解可能不对应于完美匹配,即使数据(max-plus概率测度)的所有权重都等于零,这与经典的离散最优运输类比相反,在这种情况下,类似的场景中总是存在完美匹配最优计划。然而,在某些随机情况下,完美匹配最优热带计划的存在可能相当频繁。最后,我们证明最优热带运输问题解的唯一性相当罕见。

英文摘要:

We provide an explicit algorithm to solve the idempotent analogue of the discrete Monge-Kantorovich optimal mass transportation problem with the usual real number field replaced by the tropical (max-plus) semiring, in which addition is defined as the maximum and product is defined as usual addition, with minus infinity and zero playing the roles of additive and multiplicative identities. Such a problem may be naturally called tropical or "max-plus" optimal transportation problem. We show that the solutions to the latter, called the optimal tropical plans, may not correspond to perfect matchings even if the data (max-plus probability measures) have all weights equal to zero, in contrast with the classical discrete optimal transportation analogue, where perfect matching optimal plans in similar situations always exist. Nevertheless, in some randomized situation the existence of perfect matching optimal tropical plans may occur rather frequently. At last, we prove that the uniqueness of solutions of the optimal tropical transportation problem is quite rare.

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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