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.
References
Primary source
Ilijas Farah, Georgios Katsimpas and Andrea Vaccaro, “Embedding C^*-algebras into the Calkin algebra”, arXiv:1810.00255 (2019).
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