Julia Sets of Positive Measure IV : Upper semi-continuity of Siegel disks
Speaker:
Xavier Buff, Université Toulouse III Paul Sabatier
Date and Time:
Friday, March 10, 2006 - 10:30am to 11:20am
Location:
Fields Institute, Room 230
Abstract:
Let S be the set of rational or irrational numbers whose continued fractions have coefficients greater than the Inou Shishikura constant. Let Se be the subset of those which are of bounded type. I will show that if θ0 ∈ Se, as θ tends to θ0 within S, the limit superior of the postcritical set of Pθ : z 7→ e2iπθz + z 2 is contained in the closure of the Siegel disk of Pθ0.