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A novel construction of Urysohn universal ultrametric space via the Gromov-Hausdorff ultrametric
Topology and its Applications ( IF 0.6 ) Pub Date : 2021-06-23 , DOI: 10.1016/j.topol.2021.107759 Zhengchao Wan
中文翻译:
基于 Gromov-Hausdorff 超度量的 Urysohn 通用超度量空间的新构造
更新日期:2021-07-02
Topology and its Applications ( IF 0.6 ) Pub Date : 2021-06-23 , DOI: 10.1016/j.topol.2021.107759 Zhengchao Wan
We establish universality and ultra-homogeneity of , the collection of all compact ultrametric spaces endowed with the so-called Gromov-Hausdorff ultrametric. This result also gives rise to a novel construction of the so-called R-Urysohn universal ultrametric space for each countable subset containing 0.
中文翻译:
基于 Gromov-Hausdorff 超度量的 Urysohn 通用超度量空间的新构造
我们建立了普遍性和超同质性 ,所有紧致超度量空间的集合都赋予了所谓的Gromov-Hausdorff 超度量。这一结果也为每个可数子集产生了所谓的R-Urysohn 通用超度量空间的新构造 含 0。