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Article Contents

# Topological cubic polynomials with one periodic ramification point

First author is supported by "Fondecyt Iniciación 11170276".
Second author is supported by CONICYT PIA ACT172001 and "Fondecyt 1160550".
Both authors partially supported by MathAmsud 18-Math-02 HidiParHodyn.

• For $n \ge 1$, consider the space of affine conjugacy classes of topological cubic polynomials $f: \mathbb{C} \to \mathbb{C}$ with a period $n$ ramification point. It is shown that this space is a connected topological space.

Mathematics Subject Classification: Primary: 37F10, 37F20, 37F30.

 Citation:

• Figure 1.  Illustration of Lemma 3.1 for a topological polynomial $f$ where $[(f, c, c')]\in{\mathcal{E}}({\mathcal{F}}_4)$ has kneading word $1000$

Figure 2.  Illustration of the construction of the twisting loop corresponding to $m = 3$ and kneading word $1000$. The exterior curve in black is the level curve $g_{f_0} = g_{f_0}(c_0')$. The set $f_0^{-1}(Y)$ is drawn in gray

Figure 3.  Illustration of the annulus $A$ around the twisting loop $\tau$ (left) and its preimage (right)

Figure 4.  On both pictures, the doted curve represents the outer boundary of $\partial A_{ext}'$. The lightest gray regions are ${V'_0\cup V'_1}$. The other gray regions are the complement of $V'_0\cup V'_1$ in $f_0^{-1}(D)$ (left) and in $f_1^{-1}(D)$ (right).The lines in the darker gray regions represent the preimages of $\gamma$ by $f_0$ (left) and $f_1$ (right) where $\gamma$ is as in Section 4.2

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