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Related papers: Linear dependence in Mordell-Weil groups

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We consider the local to global principle for detecting linear dependence of points in groups of the Mordell-Weil type. As applications of our general setting we obtain corresponding statements for Mordell-Weil groups of non{-}CM elliptic…

Number Theory · Mathematics 2007-05-23 Grzegorz Banaszak , Wojciech Gajda , Piotr Krason

In this paper we investigate linear dependence of points in Mordell-Weil groups of abelian varieties via reduction maps. In particular we try to determine the conditions for detecting linear dependence in Mordell-Weil groups via finite…

Number Theory · Mathematics 2010-08-06 Grzegorz Banaszak , Piotr Krason

In this paper we establish a Hasse principle concerning the linear dependence over $\Z$ of nontorsion points in the Mordell-Weil group of an abelian variety over a number field.

Number Theory · Mathematics 2008-01-07 Grzegorz Banaszak

If A is an abelian variety over a number field K, and L is a (possibly infinite) extension of K generated by torsion points of A, then the quotient of A(L) by its torsion subgroup is a free abelian group.

Number Theory · Mathematics 2007-05-23 Michael Larsen

In this paper we consider certain local-global principles for Mordell-Weil type groups over number fields like S-units, abelian varieties and algebraic K-theory groups

Number Theory · Mathematics 2008-10-28 Stefan Barańczuk

We study local-global principles for torsors under reductive linear algebraic groups over semi-global fields; i.e., over one variable function fields over complete discretely valued fields. We provide conditions on the group and the…

Algebraic Geometry · Mathematics 2023-07-12 Jean-Louis Colliot-Thélène , David Harbater , Julia Hartmann , Daniel Krashen , R. Parimala , V. Suresh

We consider local-global principles for torsors under linear algebraic groups, over function fields of curves over complete discretely valued fields. The obstruction to such a principle is a version of the Tate-Shafarevich group; and for…

Number Theory · Mathematics 2015-01-08 David Harbater , Julia Hartmann , Daniel Krashen

Using the irreducibility of a natural irreducible representation of the theta group of an ample line bundle on an abelian variety, we derive a bound for the number of $n$-torsion points that lie on a given theta divisor. We present also two…

Algebraic Geometry · Mathematics 2017-06-29 Robert Auffarth , Giuseppe Pareschi , Gian Pietro Pirola , Riccardo Salvati Manni

In this paper we prove Hasse local-global principle for polynomials with coefficients in Mordell-Weil type groups over number fields like S-units, abelian varieties with trivial ring of endomorphisms and odd algebraic K-theory groups.

Number Theory · Mathematics 2017-09-21 Stefan Barańczuk

We prove a local-global principle for torsors under the prosolvable geometric fundamental group of an affine curve over a number field.

Number Theory · Mathematics 2021-10-01 Mohamed Saidi

A set of polynomials in noncommuting variables is called locally linearly dependent if their evaluations at tuples of matrices are always linearly dependent. By a theorem of Camino, Helton, Skelton and Ye, a finite locally linearly…

Rings and Algebras · Mathematics 2018-04-27 Matej Bresar , Igor Klep

The geometric torsion conjecture asserts that the torsion part of the Mordell--Weil group of a family of abelian varieties over a complex quasiprojective curve is uniformly bounded in terms of the genus of the curve. We prove the conjecture…

Algebraic Geometry · Mathematics 2015-04-09 Benjamin Bakker , Jacob Tsimerman

We compute the Mordell-Weil groups of the modular Jacobian varieties of hyperelliptic modular curves $X_1(M, MN)$ over every number field which is the composition of quadratic fields. Also we prove criteria for the existence of elliptic…

Number Theory · Mathematics 2021-11-17 Koji Matsuda

Let $K$ be a field finitely generated over ${\Q}$, and $A$ an Abelian variety defined over $K$. Then by the Mordell-Weil Theorem, the set of rational points $A(K)$ is a finitely-generated Abelian group. In this paper, assuming Tate's…

Number Theory · Mathematics 2007-05-23 Rania Wazir

This paper investigates the existence of a local-global principle for certain twists of abelian varieties defined over number fields. Our main focus is to determine when, for $m$ a positive integer, locally $m$-atic twists of an abelian…

Number Theory · Mathematics 2026-02-20 Nirvana Coppola , Lorenzo La Porta , Matteo Longo

We prove a local-global principle for torsors under the prosolvable geometric fundamental group of a hyperbolic curve over a number field.

Number Theory · Mathematics 2015-10-26 Mohamed Saidi

We extend existing results characterizing Weil-Ch\^atelet divisibility of locally trivial torsors over number fields to global fields of positive characteristic. Building on work of Gonz\'alez-Avil\'es and Tan, we characterize when…

Number Theory · Mathematics 2017-10-11 Brendan Creutz , José Felipe Voloch

In this paper we investigate a local to global principle for Mordell-Weil group defined over a ring of integers ${\cal O}_K$ of $t$-modules that are products of the Drinfeld modules ${\widehat\varphi}={\phi}_{1}^{e_1}\times \dots \times…

Number Theory · Mathematics 2019-10-28 Wojciech Bondarewicz , Piotr Krasoń

In this article, we study the obstructions to the local-global principle for homogeneous spaces with connected or abelian stabilizers over finite extensions of the field $\mathbb{C}((x,y))$ of Laurent series in two variables over the…

Algebraic Geometry · Mathematics 2022-06-13 Diego Izquierdo , Giancarlo Lucchini Arteche

We study the structure of the Mordell--Weil groups of semiabelian varieties over large algebraic extensions of a finitely generated field of characteristic zero. We consider two types of algebraic extensions in this paper; one is of…

Number Theory · Mathematics 2025-11-27 Takuya Asayama , Yuichiro Taguchi
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