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math.OA1999
Decidability of the isomorphism problem for stationary AF-algebras and the associated ordered simple dimension groups
Ola Bratteli, Palle E. T. Jorgensen, Ki Hang Kim +1
The notion of isomorphism of stable AF-C*-algebras is considered in this paper in the case when the corresponding Bratteli diagram is stationary, i.e., is associated with a single…
math.OA1999
Non-stationarity of isomorphism between AF algebras defined by stationary Bratteli diagrams
Ola Bratteli, Palle E. T. Jorgensen, Ki Hang Kim +1
We first study situations where the stable AF-algebras defined by two square primitive nonsingular incidence matrices with nonnegative integer matrix elements are isomorphic even t…