Connes Embeddings and von Neumann Regular Closures of Group Algebras

This is an interesting paper of Gabor Elek’s which touches on some things I’ve posted about recently – especially (i) the Atiyah conjecture and (ii) the idea (which shows up in the work of Ara et al) that one can use some kind of “asymptotic rank” instead of “asymptotic trace” in some contexts where you want to build “continuous dimension” type invariants.

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