Relative commutants of strongly self-absorbing C*-algebras

Ilijas Farah, Bradd Hart, Mikael Rørdam +1

The relative commutant $A^{\prime }\cap A^{\mathcal{U}}$ of a strongly self-absorbing algebra $A$ is indistinguishable from its ultrapower $A^{\mathcal{U}}$. This applies both to the case w…