科研之友
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摘要
The Proper Forcing Axiom implies all automorphisms of every Calkin algebra associated with an infinite-dimensional complex Hilbert space and the ideal of compact operators are inner. As a means of the proof we introduce notions of metric omega(1)-trees and coherent families of Polish spaces and develop their theory parallel to the classical theory of trees of height omega(1) and coherent families indexed by a sigma-directed ordering.
- 出版日期2011-5
