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We prove $p$-adic versions of a classical result in arithmetic geometry stating that an irreducible subvariety of an abelian variety with dense torsion has to be the translate of a subgroup by a torsion point. We do so in the context of…

Number Theory · Mathematics 2020-07-07 Vlad Serban

This article explores to which extent the algebro-geometric theory of rational descendant Gromov-Witten invariants can be carried over to the tropical world. Despite the fact that the tropical moduli-spaces we work with are non-compact, the…

Algebraic Geometry · Mathematics 2019-10-14 Johannes Rau

We formulate a tropical analogue of Grothendieck's section conjecture: that for every stable graph G of genus g>2, and every field k, the generic curve with reduction type G over k satisfies the section conjecture. We prove many cases of…

Algebraic Geometry · Mathematics 2023-06-01 Wanlin Li , Daniel Litt , Nick Salter , Padmavathi Srinivasan

We prove an analogue of the Tate conjecture on homomorphisms of abelian varieties over infinite cyclotomic extensions of finitely generated fields of characteristic zero.

Number Theory · Mathematics 2015-05-18 Yuri G. Zarhin

We study the obstruction degrees of translates of sub-tori of multiplicative tori and we show how they are connected to lower bounds for the essential minimum of these varieties. In particular, we combine our computations with results of A.…

Number Theory · Mathematics 2007-05-23 Patrice Philippon , Martin Sombra

Fox's conjecture (1962) states that the sequence of absolute values of the coefficients of the Alexander polynomial of alternating links is trapezoidal. While the conjecture remains open in general, a number of special cases have been…

Combinatorics · Mathematics 2025-12-16 Karola Mészáros , Melissa Sherman-Bennett , Alexander Vidinas

We prove that two general Enriques surfaces defined over an algebraically closed field of characteristic different from $2$ are isomorphic if their Kuznetsov components are equivalent. We apply the same techniques to give a new simple proof…

Algebraic Geometry · Mathematics 2020-11-11 Chunyi Li , Howard Nuer , Paolo Stellari , Xiaolei Zhao

We formulate a conjecture for semiabelian varieties A over number fields that includes both the Mordell-Lang conjecture (now proven) and the Bogomolov conjecture. We prove the "Mordellic" (finitely generated) part of the conjecture when A…

Number Theory · Mathematics 2017-04-03 Bjorn Poonen

Let $A$ be an abelian variety in a field of characteristic $0$. We prove that the expansion of $A$ by a generic divisible subgroup of $A$ with the same torsion exists provided $A$ has few algebraic endomorphisms, namely…

Logic · Mathematics 2019-12-24 Christian d'Elbée

In this article we investigate algebraic morphisms between toric varieties. Given presentations of toric varieties as quotients we are interested in the question when a morphism admits a lifting to these quotient presentations. We show that…

Algebraic Geometry · Mathematics 2007-05-23 Florian Berchtold

Let $X$ be a quasi-projective variety and $f\colon X\to X$ a finite surjective endomorphism. We consider Zariski Dense Orbit Conjecture (ZDO), and Adelic Zariski Dense Orbit Conjecture (AZO). We consider also Kawaguchi-Silverman Conjecture…

Algebraic Geometry · Mathematics 2024-11-15 Jia Jia , Takahiro Shibata , Junyi Xie , De-Qi Zhang

It is shown that tube sets over amoebas of algebraic varieties (and, more generally, of almost periodic holomorphic chains) of dimension q are q-pseudoconcave in the sense of Rothstein. This is a direct consequence of a representation of…

Complex Variables · Mathematics 2010-01-14 Alexander Rashkovskii

In this paper we extend the arithmetic intersection theory of adelic divisors on quasiprojective varieties developed by X. Yuan and S. W. Zhang to cover certain adelic arithmetic divisors that are not nef nor integrable. The key concept…

Number Theory · Mathematics 2025-02-11 José Ignacio Burgos Gil , Jürg Kramer

First, we shall formulate and prove Theorem of Lie-Kolchin type for a cone and derive some algebro-geometric consequences. Next, inspired by a recent result of Dinh and Sibony we pose a conjecture of Tits type for a group of automorphisms…

Algebraic Geometry · Mathematics 2018-06-20 JongHae Keum , Keiji Oguiso , De-Qi Zhang

X.-S. Lin and Z. Wang recently made a conjecture concerning the integrality of the Taylor coefficients of the averaged Jones polynomial of algebraically split links. This question is related to a conjectural integrality result for the…

q-alg · Mathematics 2021-09-29 H. U. Boden

We show that the uniform Littlewood Conjecture (ULC) recently introduced by Bandi, Fregoli and Kleinbock is false. More precisely the counterexamples form a residual set, the method further suggests positive Hausdorff dimension. For a…

Number Theory · Mathematics 2026-03-16 Johannes Schleischitz

Etingof and Schedler formulated a conjecture about the degree zero Poisson homology of an affine cone that admits a projective symplectic resolution. We strengthen this conjecture in general and prove the strengthened version for hypertoric…

Algebraic Geometry · Mathematics 2012-10-09 Nicholas J. Proudfoot

We find a relation between mixed volumes of several polytopes and the convex hull of their union, deducing it from the following fact: the mixed volume of a collection of polytopes only depends on the product of their support functions…

Algebraic Geometry · Mathematics 2018-01-31 Alexander Esterov

The Pappas-Rapoport coherence conjecture, proved by Zhu, states that the dimensions of spaces of sections of certain line bundles coincide. The two sides of the equality correspond to the line bundles on spherical Schubert varieties in the…

Representation Theory · Mathematics 2026-04-06 Evgeny Feigin , an appendix in collaboration with Andrey Karenskih

In this paper we prove the Geyer-Jarden conjecture on the torsion part of the Mordell-Weil group for a large class of abelian varieties defined over finitely generated fields of arbitrary characteristic. The class consists of all abelian…

Algebraic Geometry · Mathematics 2012-01-12 Sara Arias-de-Reyna , Wojciech Gajda , Sebastian Petersen
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