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Hensel minimality, $p$-adic exponentiation and Tate uniformization

Sebastian Eterović, Floris Vermeulen

TL;DR

This work develops a robust $1$-h-minimal framework over $\mathbb{C}_p$ to study tame non-Archimedean analytic phenomena arising from $p$-adic exponentiation and Tate uniformization. It builds a definable, countable language in which both $p$-adic exponentiation and Tate uniformization are definable, and proves the existence of a commuting family of derivations that respect definable maps, yielding a model-theoretic calculus for $p$-adic transcendence questions. The paper derives a uniform version of the $p$-adic Schanuel conjecture from a base conjecture and obtains weak Ax-type results, while introducing a Tate-map Ax--Schanuel framework. Through a blurring construction, it shows the Tate uniformization setting becomes quasiminimal, enabling a Zilber--Pink–style analysis of unlikely intersections and proving $p$-adic density results for likely intersections of elliptic curves, along with dimension bounds for analytic intersections in the $p$-adic setting. Overall, the work extends o-minimal style tameness to non-Archimedean geometry, with implications for transcendence, unlikely intersections, and differential-algebraic methods in $p$-adic contexts.

Abstract

We use Hensel minimality, a non-Archimedean analog of o-minimality, to study several questions around transcendental number theory, unlikely intersections, and differential fields in a non-Archimedean setting. In particular, we focus on $p$-adic exponentiation and Tate uniformization on $\mathbb{C}_p$, which we show live in a Hensel minimal structure on $\mathbb{C}_p$. We start by constructing a large collection of derivations on Hensel minimal fields that respect definable functions, which we then apply to the $p$-adic Schanuel conjecture. We also study properties of local definability in analogy to work of Wilkie, and show that $p$-adic Schanuel implies a uniform version of itself. For Tate uniformization we show a strong closure property when blurring, and deduce that $\mathbb{C}_p$ with the blurred Tate uniformization is quasiminimal. Finally, we prove a result on $p$-adic density of likely intersections for powers of elliptic curves.

Hensel minimality, $p$-adic exponentiation and Tate uniformization

TL;DR

This work develops a robust -h-minimal framework over to study tame non-Archimedean analytic phenomena arising from -adic exponentiation and Tate uniformization. It builds a definable, countable language in which both -adic exponentiation and Tate uniformization are definable, and proves the existence of a commuting family of derivations that respect definable maps, yielding a model-theoretic calculus for -adic transcendence questions. The paper derives a uniform version of the -adic Schanuel conjecture from a base conjecture and obtains weak Ax-type results, while introducing a Tate-map Ax--Schanuel framework. Through a blurring construction, it shows the Tate uniformization setting becomes quasiminimal, enabling a Zilber--Pink–style analysis of unlikely intersections and proving -adic density results for likely intersections of elliptic curves, along with dimension bounds for analytic intersections in the -adic setting. Overall, the work extends o-minimal style tameness to non-Archimedean geometry, with implications for transcendence, unlikely intersections, and differential-algebraic methods in -adic contexts.

Abstract

We use Hensel minimality, a non-Archimedean analog of o-minimality, to study several questions around transcendental number theory, unlikely intersections, and differential fields in a non-Archimedean setting. In particular, we focus on -adic exponentiation and Tate uniformization on , which we show live in a Hensel minimal structure on . We start by constructing a large collection of derivations on Hensel minimal fields that respect definable functions, which we then apply to the -adic Schanuel conjecture. We also study properties of local definability in analogy to work of Wilkie, and show that -adic Schanuel implies a uniform version of itself. For Tate uniformization we show a strong closure property when blurring, and deduce that with the blurred Tate uniformization is quasiminimal. Finally, we prove a result on -adic density of likely intersections for powers of elliptic curves.
Paper Structure (17 sections, 26 theorems, 85 equations)

This paper contains 17 sections, 26 theorems, 85 equations.

Key Result

Theorem 1.1

Let $\mathcal{T}$ be a $1$-h-minimal theory and let $K$ be a model of $\mathcal{T}$. Then there exists a collection of commuting derivations $\Delta=(\partial_\tau)_{\tau\in \mathcal{B}}$ on $K$ with the following properties:

Theorems & Definitions (70)

  • Theorem 1.1: Existence of non-trivial derivations, Theorem \ref{['thm:derivations.text']}
  • Theorem 1.2
  • Theorem 1.3
  • Theorem 1.4
  • Lemma 2.1
  • proof
  • Corollary 2.2
  • proof
  • Definition
  • Definition
  • ...and 60 more