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The bifurcation set as a topological invariant for one-dimensional dynamics

Fuhrmann, Gabriel and Gröger, Maik and Passeggi, Alejandro (2021) 'The bifurcation set as a topological invariant for one-dimensional dynamics.', Nonlinearity., 34 (3). p. 1366.

Abstract

For a continuous map on the unit interval or circle, we define the bifurcation set to be the collection of those interval holes whose surviving set is sensitive to arbitrarily small changes of (some of) their endpoints. By assuming a global perspective and focusing on the geometric and topological properties of this collection rather than the surviving sets of individual holes, we obtain a novel topological invariant for one-dimensional dynamics. We provide a detailed description of this invariant in the realm of transitive maps and observe that it carries fundamental dynamical information. In particular, for transitive non-minimal piecewise monotone maps, the bifurcation set encodes the topological entropy and strongly depends on the behavior of the critical points.

Item Type:Article
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Status:Peer-reviewed
Publisher Web site:https://doi.org/10.1088/1361-6544/abb78c
Publisher statement:Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
Date accepted:11 September 2020
Date deposited:08 September 2021
Date of first online publication:18 February 2021
Date first made open access:08 September 2021

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