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We prove an analogue, over global function fields, of a conjecture due to Su-Ion Ih concerning the non-Zariski density of torsion points on abelian varieties that are integral with respect to a given non-special divisor. Along the way, we…

Number Theory · Mathematics 2026-01-28 Robin de Jong , Nicole Looper , Farbod Shokrieh

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 show that the epimorphism problem is solvable for targets that are virtually cyclic or a product of an Abelian group and a finite group.

Group Theory · Mathematics 2021-03-24 Stefan Friedl , Clara Loeh

In this note a Fuglede type theorem is proved for Fourier multiplier operators on translation invariant Banach function spaces with order continuous norm over compact abelian groups.

Functional Analysis · Mathematics 2022-06-29 Ben de Pagter Werner J. Ricker

We study analogues of Tate's conjecture on homomorphisms for abelian varieties when the ground field is finitely generated over an algebraic closure of a finite field. Our results cover the case of abelian varieties without nontrivial…

Number Theory · Mathematics 2011-10-12 Yuri G. Zarhin

We review what is known about the Hodge conjecture for abelian varieties, with some emphasis on how Mumford-Tate groups have been applied to this problem.

alg-geom · Mathematics 2008-02-03 B. Brent Gordon

Using properties of the Frobenius eigenvalues, we show that, in a precise sense, ``most'' isomorphism classes of (principally polarized) simple abelian varieties over a finite field are characterized up to isogeny by the sequence of their…

Number Theory · Mathematics 2007-05-23 Emmanuel Kowalski

In this article, we give a complete description of the characteristic polynomials of supersingular abelian varieties over finite fields. We list them for the dimensions upto 7.

Algebraic Geometry · Mathematics 2011-10-07 Vijaykumar Singh , Gary McGuire , Alexey Zaytsev

In this paper, we focus on the subgroups control $p$-fusion, and we improve the Theorem B of [4] for odd prime. For odd prime, we prove that elementary abelian subgroups of rank at least 2 can control $p$-fusion(see our Theorem B).

Group Theory · Mathematics 2024-12-17 Lizhong Wang , Xingzhong Xu , Jiping Zhang

It follows from the Grothendieck-Ogg-Shafarevich formula that the rank of an abelian variety (with trivial trace) defined over the function field of a curve is bounded by a quantity which depends on the genus of the base curve and on bad…

Number Theory · Mathematics 2025-10-03 Félix Baril Boudreau , Jean Gillibert , Aaron Levin

In this paper, we prove the Effective Bogomolov's Conjecture for hyperelliptic curves defined over function fields.

Algebraic Geometry · Mathematics 2007-05-23 Kazuhiko Yamaki

In this note, we propose the modular height of an abelian variety defined over a field of finite type over Q. Moreover, we prove its finiteness property.

Number Theory · Mathematics 2007-05-23 Atsushi Moriwaki

We assign functorially a $\mathbb{Z}$-lattice with semisimple Frobenius action to each abelian variety over $\mathbb{F}_p$. This establishes an equivalence of categories that describes abelian varieties over $\mathbb{F}_p$ avoiding…

Number Theory · Mathematics 2015-01-13 Tommaso Giorgio Centeleghe , Jakob Stix

We prove that for every field k and every positive integer n, there exists an absolutely simple n-dimensional abelian variety over k. We also prove an asymptotic result for finite fields: For every finite field k and positive integer n, we…

Algebraic Geometry · Mathematics 2007-05-23 Everett W. Howe , Hui June Zhu

In this paper we prove the abelian localization theorem for modules over cyclotomic Rational Cherednik algebras.

Representation Theory · Mathematics 2014-02-04 Ivan Losev

We generalize a result by Vasil'ev on the algebraic independence of periods of abelian varieties to the case when some of these periods are replaced by their exponentials. We eventually derive some applications to values of the beta…

Number Theory · Mathematics 2023-09-07 Riccardo Tosi

We determine which complex abelian varieties can be realized as the automorphism group of a smooth projective variety.

Algebraic Geometry · Mathematics 2018-01-09 Davide Lombardo , Andrea Maffei

We describe all polarizations for all abelian varieties over a finite field in a fixed isogeny class corresponding to a squarefree Weil polynomial, when one variety in the isogeny class admits a canonical liftings to characteristic zero,…

Number Theory · Mathematics 2025-02-28 Jonas Bergström , Valentijn Karemaker , Stefano Marseglia

We prove a pro-$p$ Hom-form of the birational anabelian conjecture for function fields over sub-$p$-adic fields. Our starting point is the Theorem of Mochizuki in the case of transcendence degree 1.

Algebraic Geometry · Mathematics 2010-12-07 Scott Corry , Florian Pop

We prove various characterizations of the period torsor of abelian varieties. This is the submitted version.

Number Theory · Mathematics 2021-01-19 J. S. Milne