The forcing obstruction to embedding large abelian C*-algebras into the reduced product
The forcing obstruction to embedding large abelian C*-algebras into the reduced product
Let be an abelian and nonseparable -algebra, and let be the forcing notion associated with . The density character of is greater than when
Forcing obstruction conjecture. The poset forces that does not embed into .
This is proposed as a step toward understanding when C*-algebras can be gently placed into the Calkin algebra. The supplied text gives no evidence that the claim has been resolved.
Sources & referencesView supporting material
Primary source
Ilijas Farah, Georgios Katsimpas and Andrea Vaccaro, “Embedding C^*-algebras into the Calkin algebra”, arXiv:1810.00255 (2019).
Progress summary
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