2016
DOI: 10.1007/s00220-015-2559-6
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Quadratic-Like Dynamics of Cubic Polynomials

Abstract: Abstract. A small perturbation of a quadratic polynomial f with a non-repelling fixed point gives a polynomial g with an attracting fixed point and a Jordan curve Julia set, on which g acts like angle doubling. However, there are cubic polynomials with a non-repelling fixed point, for which no perturbation results into a polynomial with Jordan curve Julia set. Motivated by the study of the closure of the Cubic Principal Hyperbolic Domain, we describe such polynomials in terms of their quadratic-like restrictio… Show more

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Cited by 16 publications
(29 citation statements)
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“…The set Ar f * (z b * ) of arguments of external rays of f * landing at z b * consists of at least two angles. Since all maps in U are quasi-symmetrically conjugate, it is easy to see (e.g., by Lemma 3.5 [BOPT13b]) that all maps f λ,b ∈ U have repelling periodic cutpoints z b corresponding to z b * . By Lemma 2.1…”
Section: The Proof Of Inclusion Phdmentioning
confidence: 99%
“…The set Ar f * (z b * ) of arguments of external rays of f * landing at z b * consists of at least two angles. Since all maps in U are quasi-symmetrically conjugate, it is easy to see (e.g., by Lemma 3.5 [BOPT13b]) that all maps f λ,b ∈ U have repelling periodic cutpoints z b corresponding to z b * . By Lemma 2.1…”
Section: The Proof Of Inclusion Phdmentioning
confidence: 99%
“…As mentioned in section (2), we will impose a technical condition on the complex coefficients, a 1 and a 0 of P a that |a 1 | < 1, |a 0 | < 1. An imminently stricter condition may also be required to make the corresponding Julia set hyperbolic, see [4,3].…”
Section: Cubic Polynomialsmentioning
confidence: 99%
“…Theorem 4.11 (Theorem B [BOPT15]). Let P : C → C be a polynomial, and Y ⊂ C be a full P -invariant continuum.…”
Section: 2mentioning
confidence: 99%
“…Proof. By [BOPT15], P | K * : K * → K * is a polynomial-like map. Hence the result follows from Theorem B.…”
Section: 2mentioning
confidence: 99%