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math.MG2015★ 3 cited
The Asymptotic Dimension of Box Spaces for Elementary Amenable Groups
Martin Finn-Sell, Jianchao Wu
We show that the asymptotic dimension of box spaces behaves (sub)additively with respect to extensions of groups. As a result, we obtain that for an elementary amenable group, the…
math.GR2015
Almost quasi-isometries and more non-exact groups
Martin Finn-Sell
We study permanence results for almost quasi-isometries, the maps arising from the Gromov construction of finitely generated random groups that contain expanders (and hence that ar…