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Uri Gabor (HUJI), On the failure of Ornstein's theory in the finitary category. | Einstein Institute of Mathematics

Uri Gabor (HUJI), On the failure of Ornstein's theory in the finitary category.

Date: 
Tue, 12/11/201914:00-15:00

Abstract: In this talk, I'll show the invalidity of finitary counterparts for three main theorems in classification theory: The preservation of being a Bernoulli shift through factors, Sinai's factor theorem, and the weak Pinsker property. This gives a negative answer to an old conjecture and to a recent open problem.