Cubic polynomials with a 2-cycle of Siegel disks

Fuente: arXiv
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Main Authors: Fu, Yuming, Hu, Jun, Muzician, Oleg
Format: Preprint
Published: 2024
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_version_ 1866912081549197312
author Fu, Yuming
Hu, Jun
Muzician, Oleg
author_facet Fu, Yuming
Hu, Jun
Muzician, Oleg
contents Under conjugation by affine transformations, the dynamical moduli space of cubic polynomials $f$ with a $2$-cycle of Siegel disks is parameterized by a three-punctured complex plane as a degree-$2$ cover. Assuming the rotation number of $f^2$ on the Siegel disk is of bounded type, we show that on the three-punctured complex plane, the locus of the cubic polynomials with both finite critical points on the boundaries of the Siegel disks on the $2$-cycle is comprised of two arcs, corresponding to the cases with two critical points on the boundary of the same Siegel disk, and a Jordan curve, corresponding to the cases with two critical points on the boundaries of different Siegel disks.
format Preprint
id arxiv_https___arxiv_org_abs_2410_16728
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Cubic polynomials with a 2-cycle of Siegel disks
Fu, Yuming
Hu, Jun
Muzician, Oleg
Dynamical Systems
Complex Variables
37F10
Under conjugation by affine transformations, the dynamical moduli space of cubic polynomials $f$ with a $2$-cycle of Siegel disks is parameterized by a three-punctured complex plane as a degree-$2$ cover. Assuming the rotation number of $f^2$ on the Siegel disk is of bounded type, we show that on the three-punctured complex plane, the locus of the cubic polynomials with both finite critical points on the boundaries of the Siegel disks on the $2$-cycle is comprised of two arcs, corresponding to the cases with two critical points on the boundary of the same Siegel disk, and a Jordan curve, corresponding to the cases with two critical points on the boundaries of different Siegel disks.
title Cubic polynomials with a 2-cycle of Siegel disks
topic Dynamical Systems
Complex Variables
37F10
url https://arxiv.org/abs/2410.16728