Towards Common Zeros of Iterated Morphisms

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Hauptverfasser: Noytaptim, Chatchai, Zhong, Xiao
Format: Preprint
Veröffentlicht: 2024
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author Noytaptim, Chatchai
Zhong, Xiao
author_facet Noytaptim, Chatchai
Zhong, Xiao
contents Recently, the authors have proved the finiteness of common zeros of two iterated rational maps under some compositional independence assumptions. In this article, we advance towards a question of Hsia and Tucker on a Zariski non-density of common zeros of iterated morphisms on a variety. More precisely, we provide an affirmative answer in the case of Hénon type maps on $\mathbb{A}^2$, endomorphisms on $(\mathbb{P}^1)^n$, and polynomial skew products on $\mathbb{A}^2$ defined over $\overline{\mathbb{Q}}$. As a by-product, we prove a Tits' alternative analogy for semigroups generated by two regular polynomial skew products.
format Preprint
id arxiv_https___arxiv_org_abs_2412_15141
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Towards Common Zeros of Iterated Morphisms
Noytaptim, Chatchai
Zhong, Xiao
Algebraic Geometry
Dynamical Systems
Number Theory
37P05, 37P30, 37P50
Recently, the authors have proved the finiteness of common zeros of two iterated rational maps under some compositional independence assumptions. In this article, we advance towards a question of Hsia and Tucker on a Zariski non-density of common zeros of iterated morphisms on a variety. More precisely, we provide an affirmative answer in the case of Hénon type maps on $\mathbb{A}^2$, endomorphisms on $(\mathbb{P}^1)^n$, and polynomial skew products on $\mathbb{A}^2$ defined over $\overline{\mathbb{Q}}$. As a by-product, we prove a Tits' alternative analogy for semigroups generated by two regular polynomial skew products.
title Towards Common Zeros of Iterated Morphisms
topic Algebraic Geometry
Dynamical Systems
Number Theory
37P05, 37P30, 37P50
url https://arxiv.org/abs/2412.15141