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


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.

Date: 

Tue, 12/11/2019 - 14:00 to 15:00