Statistical properties of unimodal maps: a survey
Speaker:
Carlos Gustavo Tamm De Araujo Moreira, IMPA
Date and Time:
Friday, December 2, 2005 - 9:30am to 10:20am
Location:
Fields Institute, Room 230
Abstract:
I will describe a series of results obtained in the last years in collaboration with Artur Avila on statistical properties of unimodal maps: for most parameters in typical analytic families of unimodal maps the corresponding map is either regular or Collet-Eckmann with slow recurrence of the critical orbit. In both cases there is a unique SRB measure for this map. We show that typically the critical orbit belongs to the basin of this measure. Moreover we prove a combinatorial formula for the eigenvalues of periodic orbits of typical nonregular analytic unimodal map. We also estimate fractal dimensions of some exceptional sets of parameters associated to such families. Co-author: Artur Avila.