scholarly journals The Solution of Hilbert's Fifth Problem for Transitive Groupoids

Author(s):  
Paweł Raźny ◽  
2010 ◽  
Vol 172 (2) ◽  
pp. 1269
Author(s):  
Isaac Goldbring

2010 ◽  
Vol 31 (2) ◽  
pp. 405-421 ◽  
Author(s):  
ALEKSANDRA KWIATKOWSKA ◽  
SŁAWOMIR SOLECKI

AbstractGiven a Polish group G of isometries of a locally compact separable metric space, we prove that each measure-preserving Boolean action by G has a spatial model or, in other words, has a point realization. This result extends both a classical theorem of Mackey and a recent theorem of Glasner and Weiss, and it covers interesting new examples. In order to prove our result, we give a characterization of Polish groups of isometries of locally compact separable metric spaces which may be of independent interest. The solution to Hilbert’s fifth problem plays an important role in establishing this characterization.


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