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arXiv 0909.0301math.COmath.HO
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双人无羡多蛋糕分

Two-player envy-free multi-cake division

John Cloutier, Kathryn L. Nyman, Francis Edward Su

摘要:

我们引入了一个广义的蛋糕切割问题,我们试图划分多个蛋糕,使两个球员可能会得到他们最喜欢的一块选择:一块从每个蛋糕的选择,允许的可能性链接偏好的蛋糕。对于两个球员,我们表明,不相交的无嫉妒片选择可能不存在两个蛋糕切成两片,他们可能不存在三个蛋糕切成三片。然而,确实存在这样的划分,两个蛋糕切成三块,三个蛋糕切成四块。由此产生的分配件的球员是帕累托最优的分工。我们使用一个推广的Sperner引理的多面体的部门定位解决方案,我们的广义蛋糕切割问题。

英文摘要:

We introduce a generalized cake-cutting problem in which we seek to divide multiple cakes so that two players may get their most-preferred piece selections: a choice of one piece from each cake, allowing for the possibility of linked preferences over the cakes. For two players, we show that disjoint envy-free piece selections may not exist for two cakes cut into two pieces each, and they may not exist for three cakes cut into three pieces each. However, there do exist such divisions for two cakes cut into three pieces each, and for three cakes cut into four pieces each. The resulting allocations of pieces to players are Pareto-optimal with respect to the division. We use a generalization of Sperner's lemma on the polytope of divisions to locate solutions to our generalized cake-cutting problem.

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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