Every transformation is disjoint from almost every IET.

Seminar: 
Group Actions and Dynamics
Event time: 
Monday, September 28, 2009 - 12:30pm to 1:30pm
Location: 
431 DL
Speaker: 
Jon Chaika
Speaker affiliation: 
Rice University
Event description: 

The main result of this talk is that every transformation is disjoint from almost every interval exchange transformation. As a consequence of this, every IET is not isomorphic to almost every IET and the product of almost every pair of interval exchange transformations is uniquely ergodic. The main tool is proving that in any sequence of density 1 almost every interval exchange transformation has a rigidity sequence.