On the AF Embeddability of Crossed Products of AF Algebras by the Integers
نویسنده
چکیده
This paper is concerned with the question of when the crossed product of an AF algebra by an action of Z is itself AF embeddable. It is well known that quasidiagonality and stable finiteness are hereditary properties. That is, if A and B are C-algebras with A ⊂ B and B has either of these properties, then so does A. Since AF algebras enjoy both of these properties we have that quasidiagonality and stable finiteness are geometric obstructions to AF embeddability. For crossed products of AF algebras by Z, these turn out to be the only obstructions.
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تاریخ انتشار 1998