| Authors: | Farah, Ilijas | Title: | The relative commutant of separable C*-algebras of real rank zero | Journal: | Journal of Functional Analysis | Volume: | 256 | Issue: | 11 | First page: | 3841 | Last page: | 3846 | Issue Date: | 1-Jun-2009 | Rank: | M21 | ISSN: | 0022-1236 | DOI: | 10.1016/j.jfa.2008.10.007 | Abstract: | 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? |
Keywords: | C -algebras * | Continuum Hypothesis | Ultrapowers | Publisher: | Elsevier |
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