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Abstract: The Proper Forcing Axiom implies all automorphisms of every Calkin algebraassociated with an infinite-dimensional complex Hilbert space and the ideal ofcompact operators are inner. As a means of the proof we introduce the notion ofPolish $\omega 1$-trees and cohrerent families of Polish spaces and prove someuniformization results.



Autor: Ilijas Farah

Fuente: https://arxiv.org/







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