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arXiv · 2101.07880

On geometrically finite degenerations I: boundaries of main hyperbolic components

Yusheng Luo
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Abstract

In this paper, we develop a theory on the degenerations of Blaschke products $\mathcal{B}_d$ to study the boundaries of hyperbolic components. We give a combinatorial classification of geometrically finite polynomials on the boundary of the main hyperbolic component $\mathcal{H}_d$ containing $z^d$. We show the closure $\overline{\mathcal{H}_d}$ is not a topological manifold with boundary for $d\geq 4$ by constructing self-bumps on its boundary.

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Yusheng Luo. 2021-01-19. On geometrically finite degenerations I: boundaries of main hyperbolic components. https://arxiv.org/abs/2101.07880

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