Abstract
The notions of an LEF group and of an LEF algebra, introduced by Gordon and Vershik in \cite{GV}, have been formulated in terms of local embeddability into finite groups or finite dimensional algebras, respectively. We will prove that the group algebra $\mC G$ of a group $G$ is LEF if and only if $G$ is. This solves a question raised in \cite{GV}.
Citation
Miloš Ziman. "On finite approximations of groups and algebras." Illinois J. Math. 46 (3) 837 - 839, Fall 2002. https://doi.org/10.1215/ijm/1258130987
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