The PFA triviality conjecture for Stone–Čech remainders

From papers

Let XX and YY be locally compact Polish spaces. For a locally compact space XX, write X=βXXX^* = \beta X\setminus X for its Stone–Čech remainder, and call a homeomorphism between such remainders trivial when it is induced by the representation described earlier in the paper. PFA triviality conjecture. Assuming the Proper Forcing Axiom, every homeomorphism between XX^* and YY^* is trivial. Since every trivial homeomorphism has a representation, this is equivalent to conjecturing that under PFA every homeomorphism Φ ⁣:XY\Phi\colon X^*\to Y^* between remainders of locally compact, non-compact, Polish spaces XX and YY has a representation. The conjecture is motivated by the stated automorphism conjectures for Boolean algebras and concerns the rigidity of Stone–Čech remainders under PFA.

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Primary source

Ilijas Farah and Saharon Shelah, “Rigidity of continuous quotients”, arXiv:1401.6689 (2014).

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