Isometric copies of l n ∞ and l n 1 in transportation cost spaces on finite metric spaces
Isometric copies of l n ∞ and l n 1 in transportation cost spaces on finite metric spaces
复制标题
有限度量空间上的运输成本空间中 l n ∞ 和 l n 1 的等距副本
DOI:
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发表时间:
2019
期刊:
影响因子:
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通讯作者:
M. Ostrovskii
中科院分区:
文献类型:
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作者:
Seychelle S. Khan;M. Mim;M. Ostrovskii
A natural and important interpretation of such a function is the following: f(v) > 0 means that f(v) units of a certain product are produced or stored at point v; f(v) < 0 means that (−f(v)) units of the same product are needed at v. The number of units can be any real number. With this in mind, f may be regarded as a transportation problem. For this reason, we denote the vector space of all real-valued functions finitely supported on M with a zero sum by TP(M), where TP stands for transportation problems. One of the standard norms on the vector space TP(M) is related to the transportation cost and is defined in the following way.
DOI:
10.4153/s0008414x19000087
发表时间:
2020
期刊:
Canadian Journal of Mathematics
影响因子:
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作者:
Dilworth, Stephen J.;Kutzarova, Denka;Ostrovskii, Mikhail I.
通讯作者:
Ostrovskii, Mikhail I.