Taming the elephants in the Mandelbrot set

Date
2023/05/26 Fri 15:00 - 17:00
Room
3号館108号室
Speaker
Carsten Lunde Petersen
Affiliation
Roskilde University
Abstract

We study classes of transcendental Horn and Adam maps, which contains the classical horn maps and their quotients coming from the dynamics on simple parabolic basins such as $z^2+1/4$ on the Cauliflower.
We define and describe the structure of the dynamical and parameter “lagoa rays”
and use these rays to design the Yoccoz puzzle machinery in this setting. As a first
consequence, we obtain the precise asymptotics of secondary satellite copies
of “principal elephants” near the cusp of the Mandelbrot set.