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Related papers: Some Remarks on Atypical Intersections

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The Mordell-Lang conjecture (proven by Faltings, Vojta and McQuillan) states that the intersection of a subvariety $V$ of a semiabelian variety $G$ defined over an algebraically closed field $\mathbb{k}$ of characteristic $0$ with a finite…

Number Theory · Mathematics 2020-01-01 Dragos Ghioca , Fei Hu , Thomas Scanlon , Umberto Zannier

We discuss the relationships between the Andr\'e-Oort, Andr\'e-Pink-Zannier, and Mordell-Lang conjectures for Shimura varieties. We then combine the latter with the geometric Zilber-Pink conjecture to obtain some new results on unlikely…

Number Theory · Mathematics 2024-03-13 Vahagn Aslanyan , Christopher Daw

We prove some cases of the Zilber-Pink conjecture on unlikely intersections in Shimura varieties. Firstly, we prove that the Zilber-Pink conjecture holds for intersections between a curve and the union of the Hecke translates of a fixed…

Number Theory · Mathematics 2021-06-10 Martin Orr

We propose an axiomatic approach towards studying unlikely intersections by introducing the framework of distinguished categories. This includes commutative algebraic groups and mixed Shimura varieties. It allows us to define all basic…

Number Theory · Mathematics 2024-11-26 Fabrizio Barroero , Gabriel Andreas Dill

We prove a general likely intersections theorem, a counterpart to the Zilber-Pink conjectures, under the assumption that the Ax-Schanuel property and some mild additional conditions are known to hold for a given category of complex quotient…

Algebraic Geometry · Mathematics 2026-01-14 Sebastian Eterović , Thomas Scanlon

We show that the strategy of point counting in o-minimal structures can be applied to various problems on unlikely intersections that go beyond the conjectures of Manin-Mumford and Andr\'e-Oort. We verify the so-called Zilber-Pink…

Number Theory · Mathematics 2014-09-03 Philipp Habegger , Jonathan Pila

We propose a unifying setting for dealing with monodromically atypical intersections that goes beyond the usual Zilber-Pink conjecture. In particular we obtain a new proof of finiteness of the maximal atypical orbit closures in each stratum…

Algebraic Geometry · Mathematics 2025-07-18 Gregorio Baldi , David Urbanik

The Zilber-Pink conjecture predicts that an algebraic curve in $\mathcal{A}_2$ has only finitely many intersections with the special curves, unless it is contained in a proper special subvariety. Under a large Galois orbits hypothesis, we…

Number Theory · Mathematics 2022-02-22 Christopher Daw , Martin Orr

Let $G$ be a semiabelian variety and $C$ a curve in $G$ that is not contained in a proper algebraic subgroup of $G$. In this situation, conjectures of Pink and Zilber imply that there are at most finitely many points contained in the…

Number Theory · Mathematics 2022-09-20 Fabrizio Barroero , Lars Kühne , Harry Schmidt

We prove that the modular Zilber--Pink conjecture (in Pink's formulation in terms of unlikely intersections) holds for all subvarieties $V$ of $ \mathrm{Y}(1)^n$ for which no projection to any $\dim V + 2$ coordinates is defined over the…

Number Theory · Mathematics 2025-09-04 Vahagn Aslanyan , Sebastian Eterović , Guy Fowler

Let $G$ be a semiabelian variety defined over an algebraically closed field $K$ of prime characteristic. We describe the intersection of a subvariety $X$ of $G$ with a finitely generated subgroup of $G(K)$.

Number Theory · Mathematics 2023-06-07 Dragos Ghioca , She Yang

In this note, we prove the Zilber--Pink conjecture for subvarieties of mixed Shimura varieties, which are not defined over~$\overline{\mathbb Q}$ in a strong sense. We prove similar results for general variations of mixed Hodge structure of…

Algebraic Geometry · Mathematics 2025-04-02 Bruno Klingler , Salim Tayou

We prove the Zilber-Pink conjecture for curves in $Y(1)^3$ that intersect a modular curve in the boundary. We also give an unconditional result for unlikely intersection points having few places of supersingular reduction where they are…

Number Theory · Mathematics 2026-02-27 Christopher Daw , Martin Orr , Georgios Papas

Let $\Gamma\subset \bar{\mathbb{Q}}^*$ be a finitely generated subgroup. Denote by $\Gamma_\mathrm{div}$ its division group. A recent conjecture due to R\'emond, related to the Zilber-Pink conjecture, predicts that the absolute logarithmic…

Number Theory · Mathematics 2023-02-13 Arnaud Plessis

We prove function field versions of the Zilber-Pink conjectures for varieties supporting a variation of Hodge structures. A form of these results for Shimura varieties in the context of unlikely intersections is the following. Let $S$ be a…

Algebraic Geometry · Mathematics 2021-05-13 Jonathan Pila , Thomas Scanlon

A deep conjecture on torsion anomalous varieties states that if $V$ is a weak-transverse variety in an abelian variety, then the complement $V^{ta}$ of all $V$-torsion anomalous varieties is open and dense in $V$. We prove some cases of…

Number Theory · Mathematics 2024-04-09 Sara Checcoli , Francesco Veneziano , Evelina Viada

Working in a variant of the intersection type assignment system of Coppo, Dezani-Ciancaglini and Veneri [1981], we prove several facts about sets of terms having a given intersection type. Our main result is that every strongly normalizing…

Logic in Computer Science · Computer Science 2021-05-11 Richard Statman , Andrew Polonsky

The Mordell-Lang conjecture describes the intersection of a finitely generated subgroup with a closed subvariety of a semiabelian variety. Equivalently, this conjecture describes the intersection of closed subvarieties with the set of…

Number Theory · Mathematics 2013-10-09 Dragos Ghioca , Thomas J. Tucker , Michael E. Zieve

We prove a special case of the following conjecture of Zilber-Pink generalising the Manin-Mumford conjecture : let $X$ be a curve inside an Abelian variety $A$ over $\bar{\Q}$, provided $X$ is not contained in a torsion subvariety, the…

Number Theory · Mathematics 2008-01-14 Nicolas Ratazzi

We determine the structure of the intersection of a finitely generated subgroup of a semiabelian variety $G$ defined over a finite field with a closed subvariety $X\subset G$.

Number Theory · Mathematics 2007-05-23 Dragos Ghioca
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