Strong self-absorption criterion for coronas
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.
Sources & referencesView supporting material
Primary source
Ilijas Farah, “Calkin algebra, Kazhdan's property (T), strongly self-absorbing C*-algebras”, arXiv:2208.12301 (2023).
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