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Rotation sets for unimodal maps of the interval - MaRDI portal

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Rotation sets for unimodal maps of the interval (Q1812319)

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scientific article; zbMATH DE number 1932832
Language Label Description Also known as
English
Rotation sets for unimodal maps of the interval
scientific article; zbMATH DE number 1932832

    Statements

    Rotation sets for unimodal maps of the interval (English)
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    2003
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    The author relates the rotation interval \(\rho(f)\) of a unimodal map of the interval with its kneading invariant \(K(f)\). In particular, he shows that for any \(\mu\in (0,\frac12)\), there are kneading invariants \(\nu_{\mu}\) and \(\nu_{\mu,\text{hom}}\) such that \(\rho(f)=[\mu,\frac12]\) if and only if \(\nu_{\mu}\preceq K(f)\preceq\nu_{\mu,\text{hom}}\). There are several inaccuracies (typos) in the paper: 1) The set \(M_n\) contains also patterns which are not unimodal. 2) Definition 1.11. A pattern \(\pi\) with rotation number \(\rho(\pi)=\frac{p}{q}\) is twist if it does not force any other pattern of the same rotation number. 3) In Theorem 1.12 should be \(T_{\mu_1}\rightarrow T_{\mu_2}\).
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    unimodal map
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    rotation interval
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    kneading invariant
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