Coboundaries and ergodic sums
Time
Nov 14 2013 – 3:00pm
Location
MW154
Speaker
Joseph Rosenblatt (UIUC)
Abstract
The behavior of the norms of ergodic sums can be used to characterize coboundaries. But the behavior of the norms of ergodic sums can be fairly chaotic. Moreover, for a given function, which classes of transformations have that function as a coboundary is a complex issue. These types of things will be considered in some detail for general ergodic transformations of a probability space.