Strong self-absorption criterion for coronas
Let and be separable and unital -algebras, with strongly self-absorbing. For a -algebra , write for its corona algebra, and let denote the commutant of . Strong self-absorption criterion for coronas. The following are equivalent:
For every separable -subalgebra of , there is a unital embedding
This is proposed as an analogue for corona algebras of the corresponding characterization of tensorial absorption. The supplied text gives no resolution, so the conjecture remains open.
References
Primary source
Ilijas Farah, “Calkin algebra, Kazhdan's property (T), strongly self-absorbing C*-algebras”, arXiv:2208.12301 (2023).
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