Universality of group embeddability

作者: Filippo Calderoni , Luca Motto Ros

DOI: 10.1090/PROC/13857

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摘要: Working in the framework of Borel reducibility, we study various notions embeddability between groups. We prove that countable groups, topological (discrete) Polish and isometric separable groups with a bounded bi-invariant complete metric are all invariantly universal analytic quasi-orders. This strengthens some results from [Wil14] [FLR09].

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