WebDistance Sets of Urysohn Metric Spaces - Volume 65 Issue 1. Skip to main content Accessibility help ... [12] Nguyen, L. Van Thé, Structural Ramsey theory of metric spaces and topological dynamics of isometry groups. Mem. Amer. Math. Soc. 206 (2010), no. 968.Google Scholar WebFixed points in compactifications and combinatorial counterparts

ELEMENTS OF FINITE ORDER IN AUTOMORPHISM GROUPS OF HOMOGENEOUS STRUCTURES

Web14 de nov. de 2012 · We give a general criterion for the (bounded) simplicity of the automorphism groups of certain countable structures and apply it to show that the … WebTheorem Urysohn space admits an isometry of innite order, all of whose orbits are dense in the space. In particular, the closure of this isometry in the isometry group of U (in the weak topology) is an abelian group transitive on U . So U has an abelian group structure (indeed, many different abelian group structures). small plastic travel containers

Topology of the isometry group of the Urysohn space

Webapply to the isometry group of the rational Urysohn space, and then extended to Urysohn space by topological techniques. Here is an example, due to Vershik and me. Theorem Urysohn space admits an isometry of infinite order, all of whose orbits are dense in the space. In particular, the closure of this isometry in the isometry group Web17 de set. de 2011 · We give a general criterion for the simplicity of the automorphism groups of certain countable structures and apply it to show that the isometry group of … WebA paraître dans Zbornik Radova. (Beograd). Mat. Inst. SANU, Belgrade ; International audience ; In 2005, Kechris, Pestov and Todorcevic established a surprising correspondence between structural Ramsey theory and … small plastic travel boxes with hinged lids