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arXiv 1707.04852math.DS
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朱利亚集作为隐藏Julia分量

Julia sets as buried Julia components

Youming Wang, Fei Yang

摘要:

设$f$是一个次数为$d\geq 2$的有理映射,其朱利亚集连通但不等于整个黎曼球面.证明了存在一个有理映射$g$,使得$g$包含一个隐Julia分支,该分支上的动力学与$f$在朱利亚集上的动力学拟共形共轭当且仅当$f$不具有抛物盆和Siegel圆盘.如果存在这样的$g$,则可以选择度使得$\text{deg}(g)\leq 7d-2$。特别地,如果$f$是多项式,则可以选择$g$,使得$\text{deg}(g)\leq 4d+4$。此外,还构造了一些四次和三次有理映射,它们的朱利亚集中含有埋Jordan曲线.

英文摘要:

Let $f$ be a rational map with degree $d\geq 2$ whose Julia set is connected but not equal to the whole Riemann sphere. It is proved that there exists a rational map $g$ such that $g$ contains a buried Julia component on which the dynamics is quasiconformally conjugate to that of $f$ on the Julia set if and only if $f$ does not have parabolic basins and Siegel disks. If such $g$ exists, then the degree can be chosen such that $\text{deg}(g)\leq 7d-2$. In particular, if $f$ is a polynomial, then $g$ can be chosen such that $\text{deg}(g)\leq 4d+4$. Moreover, some quartic and cubic rational maps whose Julia sets contain buried Jordan curves are also constructed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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