Special Session 5: Scientific Computation and Numerical Algorithms

Some self-similar interval exchanges and translation surfaces

Chris Johnson
Bucknell University
USA
Co-Author(s):    
Abstract:
Understanding the dynamics of flows on infinite-area translation surfaces is complicated by the fact that the flow need not be conservative and so may not return to a transverse geodesic segment. For special surfaces exhibiting a particular type of self-similarity, however, we may construct a special collection of geodesic segments which flows in transverse directions must intersect. First-return maps to these collections of segments form an infinite interval exchange which also exhibits a self-similarity that we can exploit to study the dynamics of the system. In this talk I will describe the construction of these self-similar interval exchanges and translation surfaces, and give some preliminary results about their dynamics.