The relative commutant of separable C*-algebras of real rank zero
classification
🧮 math.OA
math.LO
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commutantrelativeseparablealgebraalgebrasanswerchoicecommunication
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We answer a question of E. Kirchberg (personal communication): does the relative commutant of a separable C*-algebra in its ultrapower depend on the choice of the ultrafilter?
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