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Autor:
Li, Hanfeng, Liang, Bingbing
Publikováno v:
J. Reine Angew. Math 739 (2018), 207--240
We introduce an invariant, called mean rank, for any module M of the integral group ring of a discrete amenable group $\Gamma$, as an analogue of the rank of an abelian group. It is shown that the mean dimension of the induced $\Gamma$-action on the
Externí odkaz:
http://arxiv.org/abs/1307.5471