Taming the elephants in the Mandelbrot set

開催日時
2023/05/26 金 15:00 - 17:00
場所
3号館108号室
講演者
Carsten Lunde Petersen
講演者所属
Roskilde University
概要

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.