preprint-author: 
Jeremy Kahn, Alex Kapiamba, Mikhail Lyubich
preprint-title: 
MLC for parabolically bounded primitive renormalization
preprint-abstract: 

We prove   bounds and MLC (local connectivity of the Mandelbrot set  ) for a class of infinitely renormalizable parameters whose renormalization type is primitive but can approach the cusp of  . To this end we develop and refine a variety of tools that allow us to control degeneration of renormalizations. They include the Thin-Thick Decomposition, the Value Calculus, the Wanderers Theorem, and the Wave Lemma. △ Less

Submitted 25 June, 2026; originally announced June 2026.

arXiv:2606.27272v1

preprint-year: 
2026