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Extensions of Cuntz-Krieger algebras (1511.09463v1)
Published 30 Nov 2015 in math.OA and math.KT
Abstract: We show that a C*-algebra "looking like" a Cuntz-Krieger algebra is a Cuntz-Krieger algebra. This implies that, in an appropriate sense, the class of Cuntz-Krieger algebras is closed under extensions of real rank zero.