The Urysohn Sphere Is Oscillation Stable
The Urysohn Sphere Is Oscillation Stable
复制标题
Urysohn 球体振荡稳定
DOI:
10.1007/s00039-009-0007-5
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发表时间:
2007
影响因子:
2.2
通讯作者:
N. Sauer
中科院分区:
文献类型:
--
作者:
L. N. Thé;N. Sauer
We solve the oscillation stability problem for the Urysohn sphere, an analog of the distortion problem for ℓ2 in the context of the Urysohn space U. This is achieved by solving a purely combinatorial problem involving a family of countable ultrahomogeneous metric spaces with finitely many distances.