Seminar 11.14.13

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.