Multifractal analysis of intermingled basins and blowout bifurcations in a parametetric family of skew product maps

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Hauptverfasser: Ghane, Fatemeh Helen, Kesseböhmer, Marc
Format: Preprint
Veröffentlicht: 2025
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author Ghane, Fatemeh Helen
Kesseböhmer, Marc
author_facet Ghane, Fatemeh Helen
Kesseböhmer, Marc
contents In this paper we study a two-parameter family of planar maps characterized by two distinct invariant subspaces. The model reveals the existence of two chaotic attractors within these subspaces. We identify parameter values at which these attractors either exhibits a locally riddled basin of attraction or transitions into a chaotic saddle. In particular, we demonstrate that, for an open region in the parameter plane, their basins are intermingled. It is shown that a fractal boundary curve separates the basins of attraction of these two chaotic attractors, providing a detailed characterization of the riddled basin structure. Additionally, we show that the model undergoes a blowout bifurcation. An estimation of the stability index is examined using thermodynamic formalism. We also perform a multifractal analysis of the level sets of the stability index.
format Preprint
id arxiv_https___arxiv_org_abs_2502_04869
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Multifractal analysis of intermingled basins and blowout bifurcations in a parametetric family of skew product maps
Ghane, Fatemeh Helen
Kesseböhmer, Marc
Chaotic Dynamics
Dynamical Systems
37C70, 37C40, 37H15, 37C45
In this paper we study a two-parameter family of planar maps characterized by two distinct invariant subspaces. The model reveals the existence of two chaotic attractors within these subspaces. We identify parameter values at which these attractors either exhibits a locally riddled basin of attraction or transitions into a chaotic saddle. In particular, we demonstrate that, for an open region in the parameter plane, their basins are intermingled. It is shown that a fractal boundary curve separates the basins of attraction of these two chaotic attractors, providing a detailed characterization of the riddled basin structure. Additionally, we show that the model undergoes a blowout bifurcation. An estimation of the stability index is examined using thermodynamic formalism. We also perform a multifractal analysis of the level sets of the stability index.
title Multifractal analysis of intermingled basins and blowout bifurcations in a parametetric family of skew product maps
topic Chaotic Dynamics
Dynamical Systems
37C70, 37C40, 37H15, 37C45
url https://arxiv.org/abs/2502.04869