3 papers
math.OA2013
Crossed Products and MF algebras
Weihua Li, Stefanos Orfanos
We prove that the crossed product AxG of a unital finitely generated MF algebra A by a discrete finitely generated amenable residually finite group G is an MF algebra, provided tha…
math.OA2008
Generalized Bunce-Deddens algebras
Stefanos Orfanos
We define a broad class of crossed product C*-algebras of the form C(G)xG, where G is a discrete countable amenable residually finite group, and G is a profinite completion of G. W…
math.OA2007
Quasidiagonality of crossed products
Stefanos Orfanos
We prove that the crossed product A x G of a separable, unital, quasidiagonal C*- algebra A by a discrete, countable, amenable, maximally almost periodic group G is quasidiagonal,…