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Following the work of Waldschmidt, we investigate problems in Diophantine approximation on abelian varieties. First we show that a conjecture of Waldschmidt for a given simple abelian variety is equivalent to a well-known Diophantine…

Number Theory · Mathematics 2025-06-25 Lior Fishman , David Lambert , Keith Merrill , David Simmons

In this article, we give a reformulation of a result from Howe, Leprevost and Poonen on a three dimensional family of abelian threefolds. We also link their result to a conjecture of Serre on a precise form of Torelli theorem for genus 3…

Number Theory · Mathematics 2007-10-18 Gilles Lachaud , Christophe Ritzenthaler

The celebrated Mason's conjecture states that the sequence of independent set numbers of any matroid is log-concave, and even ultra log-concave. The strong form of Mason's conjecture was independently solved by Anari, Liu, Oveis Gharan and…

Combinatorics · Mathematics 2026-01-26 Shiqi Cao , Keyi Chen , Yitian Li , Yuxin Wu

In arXiv:math/0311139, as evidence for his conjecture in birational log geometry, Kawamata constructed a family of derived equivalences between toric orbifolds. In arXiv:0911.4711, we showed that the derived category of a toric orbifold is…

Algebraic Geometry · Mathematics 2011-02-08 Bohan Fang , Chiu-Chu Melissa Liu , David Treumann , Eric Zaslow

In this paper we propose a conjecture concerning partial sums of an arbitrary finite subset of an abelian group, that naturally arises investigating simple Heffter systems. Then, we show its connection with related open problems and we…

Combinatorics · Mathematics 2017-06-15 Simone Costa , Fiorenza Morini , Anita Pasotti , Marco Antonio Pellegrini

The Bogomolov conjecture claims that a closed subvariety containing a dense subset of small points is a special kind of subvarieties. In the arithmetic setting over number fields, the Bogomolov conjecture for abelian varieties has already…

Algebraic Geometry · Mathematics 2019-02-20 Kazuhiko Yamaki

In this paper we prove the equidistribution of $\Cbf$-special subvarieties in certain Kuga varieties, which implies a special case of the general Andr\'e-Oort conjecture formulated for mixed Shimura varieties proposed by R.Pink. The main…

Number Theory · Mathematics 2011-12-13 K. Chen

We discuss two properties of an abelian variety, namely, being a direct summand in a product of Jacobians and the weaker property of being "split". We relate the first property to the integral Hodge conjecture for curve classes on abelian…

Algebraic Geometry · Mathematics 2023-07-07 Claire Voisin

In this paper, we generalize a conjecture due to Darmon and Logan in an adelic setting. We study the relation between our construction and Kudla's works on cycles on orthogonal Shimura varieties. This relation allows us to conjecture a…

Number Theory · Mathematics 2011-04-19 Jerome Gartner

We extend to the case of semi-abelian varieties the statements of various variants of the conjecture alla Bogomolov about the non-density of small points of small height in abelian varieties. Inspired by recent work of Ullmo, Zhang and…

Number Theory · Mathematics 2007-05-23 Antoine Chambert-Loir

We extend a result due to Kawai on block varieties for blocks with abelian defect groups to blocks with arbitrary defect groups. This partially answers a question by J. Rickard.

Representation Theory · Mathematics 2021-10-13 Markus Linckelmann

The Hodge Conjecture is equivalent to a statement about conditions under which a complex vector bundle on a smooth complex projective variety admits a holomorphic structure. I advertise a class of abelian four-folds due to Mumford where…

Algebraic Geometry · Mathematics 2008-09-24 Ramadas T. Ramakrishnan

We prove the Iwasawa main conjecture over the arithmetic $\mathbb{Z}_p$-extension for semistable abelian varieties over function fields of characteristic $p>0$.

Number Theory · Mathematics 2014-06-25 King Fai Lai , Ignazio Longhi , Ki-Seng Tan , Fabien Trihan

We prove a conjecture of Nakajima (for type A the result was announced by Ginzburg- Vasserot) giving a geometric realization, via quiver varieties, of the Yangian of type ADE (and more in general of the Yangian associated to every symmetric…

Quantum Algebra · Mathematics 2007-05-23 Michela Varagnolo

We formulate a categorification of Robertson's conjecture analogous to the categorical graph minor conjecture of Miyata--Proudfood--Ramos. We show that these conjectures imply the existence of a finite list of atomic graphs generating the…

Algebraic Topology · Mathematics 2024-05-24 Ben Knudsen , Eric Ramos

We investigate when Isomorphism Conjectures, such as the ones due to Baum-Connes, Bost and Farrell-Jones, are stable under colimits of groups over directed sets (with not necessarily injective structure maps). We show in particular that…

K-Theory and Homology · Mathematics 2007-05-23 Arthur Bartels , Siegfried Echterhoff , Wolfgang Lueck

We suggest to look at formal sentences describing complex algebraic varieties together with their universal covers as topological invariants. We prove that for abelian varieties and Shimura varieties this is indeed a complete invariant,…

Logic · Mathematics 2023-05-11 Boris Zilber

It is shown that a natural notion of congruence permutability for quasivarieties already implies ``being a variety''. The result follows immediately from [3] and the sole aim of this note is to state it explicitly, together with a…

Logic · Mathematics 2025-12-11 Luca Carai , Miriam Kurtzhals , Tommaso Moraschini

We formulate a version of the integral Hodge conjecture for categories, prove the conjecture for two-dimensional Calabi-Yau categories which are suitably deformation equivalent to the derived category of a K3 or abelian surface, and use…

Algebraic Geometry · Mathematics 2020-12-16 Alexander Perry

We prove the Bogomolov conjecture for an abelian variety A over a function field which is totally degenerate at a place v. We adapt Zhang's proof of the number field case replacing the complex analytic tools by tropical analytic geometry. A…

Number Theory · Mathematics 2009-11-11 Walter Gubler