Julia Sets with a Wandering Branching Point
According to the Thurston No Wandering Triangle Theorem, a branching point in a locally connected quadratic Julia set is either preperiodic or precritical. Blokh and Oversteegen proved that this theorem does not hold for higher-degree Julia sets: there exist cubic polynomials whose Julia set is a lo...
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Veröffentlicht in: | Indiana University mathematics journal 2020-01, Vol.69 (6), p.2241-2265 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | According to the Thurston No Wandering Triangle Theorem, a branching point in a locally connected quadratic Julia set is either preperiodic or precritical. Blokh and Oversteegen proved that this theorem does not hold for higher-degree Julia sets: there exist cubic polynomials whose Julia set is a locally connected dendrite with a branching point which is neither preperiodic nor precritical. In this article, we re-prove this result, constructing such cubic polynomials as limits of cubic polynomials for which one critical point eventually maps to the other critical point, which eventually maps to a repelling fixed point. |
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ISSN: | 0022-2518 1943-5258 |
DOI: | 10.1512/iumj.2020.69.8056 |