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arXiv · 1810.03841

Heights and periodic points for one-parameter families of H\'enon maps

Liang-Chung Hsia·Shu Kawaguchi
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Abstract

In this paper we study arithmetic properties of a one-parameter family ${\mathbf H}$ of H\'enon maps over the affine line. Given a family of initial points ${\mathbf P}$ satisfying a natural condition, we show the height function $h_{{\mathbf P}}$ associated to ${\mathbf H}$ and ${\mathbf P}$ is the restriction of the height function associated to a semipositive adelically metrized line bundle on projective line. We then show various local properties of $h_{{\mathbf P}}$. Next we consider the set $\Sigma({\mathbf P})$ consisting of periodic parameter values, and study when $\Sigma({\mathbf P})$ is an infinite set or not. We also study unlikely intersections of periodic parameter values.

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Liang-Chung Hsia, Shu Kawaguchi. 2018-10-09. Heights and periodic points for one-parameter families of H\'enon maps. https://arxiv.org/abs/1810.03841

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