Pseudo-Riemannian geometry calibrates optimal transportation

Pseudo-Riemannian geometry calibrates optimal transportation
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伪黎曼几何校准最佳运输

DOI:
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发表时间:
2009
期刊:
影响因子:
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通讯作者:
M. Warren
M. Warren
中科院分区:
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文献类型:
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作者:
Young;R. McCann;M. Warren

文献摘要

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考虑到运输成本c:M dad M!R,最优映射使质量从M移动到N M的总成本最小化。我们发现,明确地,一个伪度量和校准形式M dad ′ M,使得最佳映射的图是一个校准的极大子流形,因此具有零平均曲率。我们定义了具有不定度规的空间中类空流的质量.
Given a transportation cost c : M ◊ ¯ M ! R, optimal maps minimize the total cost of moving masses from M to ¯ M. We find, explicitly, a pseudo-metric and a calibration form on M ◊ ¯ M such that the graph of an optimal map is a calibrated maximal submanifold, and hence has zero mean curvature. We define the mass of space- like currents in spaces with indefinite metrics.