Boundaries of the bounded hyperbolic components of polynomials
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arXiv
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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866915254934437888 |
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| author | Gao, Yan Wang, Xiaoguang Wang, Yueyang |
| author_facet | Gao, Yan Wang, Xiaoguang Wang, Yueyang |
| contents | In this paper, we study the local connectivity and Hausdorff dimension for the boundaries of the bounded hyperbolic components in the space $\mathcal P_d$ of polynomials of degree $d\geq 3$. It is shown that for any non disjoint-type bounded hyperbolic component $\mathcal H\subset \mathcal P_d$, the locally connected part of $\partial\mathcal H$, along each regular boundary strata, has full Hausdorff dimension $2d-2$.
An essential innovation in our argument involves analyzing how the canonical parameterization of the hyperbolic component--realized via Blaschke products over a mapping scheme--extends to the boundary. This framework allows us to study three key aspects of $\partial \mathcal H$: the local connectivity structure, the perturbation behavior, and the local Hausdorff dimensions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_16496 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Boundaries of the bounded hyperbolic components of polynomials Gao, Yan Wang, Xiaoguang Wang, Yueyang Dynamical Systems Complex Variables Primary 37F46, Secondary 37F10, 37F15, 37F44 In this paper, we study the local connectivity and Hausdorff dimension for the boundaries of the bounded hyperbolic components in the space $\mathcal P_d$ of polynomials of degree $d\geq 3$. It is shown that for any non disjoint-type bounded hyperbolic component $\mathcal H\subset \mathcal P_d$, the locally connected part of $\partial\mathcal H$, along each regular boundary strata, has full Hausdorff dimension $2d-2$. An essential innovation in our argument involves analyzing how the canonical parameterization of the hyperbolic component--realized via Blaschke products over a mapping scheme--extends to the boundary. This framework allows us to study three key aspects of $\partial \mathcal H$: the local connectivity structure, the perturbation behavior, and the local Hausdorff dimensions. |
| title | Boundaries of the bounded hyperbolic components of polynomials |
| topic | Dynamical Systems Complex Variables Primary 37F46, Secondary 37F10, 37F15, 37F44 |
| url | https://arxiv.org/abs/2504.16496 |