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math.OA2006★ 32 cited
The structure of crossed products of irrational rotation algebras by finite subgroups of SL_2 (Z)
Siegfried Echterhoff, Wolfgang Lueck, N. Christopher Phillips +1
Let F be a finite subgroup of SL_2 (Z) (necessarily isomorphic to one of Z/2Z, Z/3Z, Z/4Z, or Z/6Z), and let F act on the irrational rotational algebra A_θ via the restriction of t…
math.GT2006
Equivariant covers for hyperbolic groups
Arthur Bartels, Wolfgang Lueck, Holger Reich
We prove an equivariant version of the fact that word-hyperbolic groups have finite asymptotic dimension. This is important in connection with our forthcoming proof of the Farrell-…