Isometric structure of transportation cost spaces on finite metric spaces
Isometric structure of transportation cost spaces on finite metric spaces
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有限度量空间上运输成本空间的等距结构
DOI:
10.1007/s13398-022-01301-w
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Ostrovskii, Mikhail I.
中科院分区:
文献类型:
--
作者:
Ostrovska, Sofiya;Ostrovskii, Mikhail I.
The paper is devoted to isometric Banach-space-theoretical structure of transportation cost (TC) spaces on finite metric spaces. The TC spaces are also known as Arens-Eells, Lipschitz-free, or Wasserstein spaces. A new notion of a roadmap pertinent to a transportation problem on a finite metric space has been introduced and used to simplify proofs for the results on representation of TC spaces as quotients ofspaces on the edge set over the cycle space. A Tolstoi-type theorem for roadmaps is proved, and directed subgraphs of the canonical graphs, which are supports of maximal optimal roadmaps, are characterized. Possible obstacles for a TC space on a finite metric spaceXpreventing them from containing subspaces isometric tohave been found in terms of the canonical graph ofX. The fact that TC spaces on diamond graphs do not containisometrically has been derived. In addition, a short overview of known results on the isometric structure of TC spaces on finite metric spaces is presented.
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影响因子:
0.9
作者:
G. Burton
通讯作者:
G. Burton
DOI:
10.1145/1132516.1132595
发表时间:
2006
期刊:
ArXiv
影响因子:
--
作者:
H. Karloff;Subhash Khot;Aranyak Mehta;Y. Rabani
通讯作者:
Y. Rabani
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1
作者:
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通讯作者:
J. Bourgain;J. Bourgain
DOI:
--
发表时间:
2009
期刊:
影响因子:
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作者:
Alexandre Godard
通讯作者:
Alexandre Godard
影响因子:
1
作者:
Dilworth, S. J.;Kutzarova, Denka;Ostrovskii, Mikhail I.
通讯作者:
Ostrovskii, Mikhail I.