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This paper proves a finiteness result for families of integral points on a semiabelian variety minus a divisor, generalizing the corresponding result of Faltings for abelian varieties. Combined with the main theorem of the first part of…

Number Theory · Mathematics 2007-05-23 Paul Vojta

The characteristic cycle of a complex of sheaves on a complex analytic space provides weak information about the complex; essentially, it yields the Euler characteristics of the hypercohomology of normal data to strata. We show how perverse…

Algebraic Geometry · Mathematics 2007-05-23 David B. Massey

In this article, we give a condition on the vanishing of finitely many homogeneous components which must imply the asymptotic vanishing for multigraded modules. We apply our result to multi-Rees algebras of ideals. As a consequence, we…

Commutative Algebra · Mathematics 2018-08-01 Futoshi Hayasaka

We prove some new results on the arithmetic of abelian varieties over function fields of one variable over finitely generated (infinite) fields. Among other things, we introduce certain new natural objects `discrete Selmer groups' and…

Number Theory · Mathematics 2018-08-15 Mohamed Saidi , Akio Tamagawa

We give a moduli-theoretic proof of the classical theorem of Gabriel, stating that a scheme can be reconstructed from the abelian category of quasi-coherent sheaves over it. The methods employed are elementary and allow us to extend the…

Algebraic Geometry · Mathematics 2013-10-25 John Calabrese , Michael Groechenig

We use recent results about linking the number of zeros on algebraic varieties over $\mathbb{C}$, defined by polynomials with integer coefficients, and on their reductions modulo sufficiently large primes to study congruences with products…

Number Theory · Mathematics 2022-07-25 Bryce Kerr , Jorge Mello , Igor Shparlinski

In these notes a recently developed technique for the computation of line bundle-valued sheaf cohomology group dimensions on toric varieties is reviewed. The key result is a vanishing theorem for the contributing components which depends on…

Algebraic Geometry · Mathematics 2012-11-06 Benjamin Jurke

In this paper we prove a characterization of quotients of Abelian varieties by the actions of finite groups that are free in codimension-one via some vanishing conditions on the orbifold Chern classes. The characterization is given among a…

Algebraic Geometry · Mathematics 2016-10-18 Steven Lu , Behrouz Taji

We extend the results of generic vanishing theory to polarizable real Hodge modules on compact complex tori, and from there to arbitrary compact K\"ahler manifolds. As applications, we obtain a bimeromorphic characterization of compact…

Algebraic Geometry · Mathematics 2016-10-11 Giuseppe Pareschi , Mihnea Popa , Christian Schnell

We introduce the etale framework to study Igusa zeta functions in several variables, generalizing the machinery of vanishing cycles in the univariate case. We define the etale Alexander modules, associated to a morphism of varieties F from…

Algebraic Geometry · Mathematics 2007-05-23 Johannes Nicaise

We prove a general vanishing theorem for the cohomology of products of symmetric and skew-symmetric powers of an ample vector bundle on a smooth complex projective variety. Special cases include an extension of classical theorems of…

alg-geom · Mathematics 2009-10-28 Laurent Manivel

To any complex algebraic variety endowed with a morphism to a complex affine torus we associate multivariable cohomological Alexander modules, and define natural mixed Hodge structures on their maximal Artinian submodules. The key…

Algebraic Geometry · Mathematics 2021-04-21 Eva Elduque , Moisés Herradón Cueto , Laurenţiu Maxim , Botong Wang

We introduce a notion of quasi-lisse vertex algebras, which generalizes admissible affine vertex algebras. We show that the normalized character of an ordinary module over a quasi-lisse vertex operator algebra has a modular invariance…

Quantum Algebra · Mathematics 2017-07-24 Tomoyuki Arakawa , Kazuya Kawasetsu

This paper extends a number of known results on slope-semistable sheaves from the classical case to the setting where polarisations are given by movable curve classes. As applications, we obtain new flatness results for reflexive sheaves on…

Algebraic Geometry · Mathematics 2016-06-28 Daniel Greb , Stefan Kebekus , Thomas Peternell

Let $A$ be an abelian variety with totally degenerate reduction over a non-Archimedean field. We describe the moduli space of semihomogeneous vector bundles on $A$ from the perspective of non-Archimedean uniformization and show that the…

Algebraic Geometry · Mathematics 2026-05-13 Andreas Gross , Inder Kaur , Martin Ulirsch , Annette Werner

We study the arithmetic Fourier transforms of trace functions on general connected commutative algebraic groups. To do so, we first prove a generic vanishing theorem for twists of perverse sheaves by characters, and using this tool, we…

Number Theory · Mathematics 2025-09-09 Arthur Forey , Javier Fresán , Emmanuel Kowalski

This paper is a summary of author's results on finite flat commutative group schemes. The properties of the generic fibre functor are discussed. A complete classification of finite local flat commutative group schemes over mixed…

Number Theory · Mathematics 2014-06-17 M. V. Bondarko

Let $X$ be a topologically stratified space, $p$ be any perversity on $X$, and $k$ be a field. We show that the category of $p$-perverse sheaves on $X$, constructible with respect to the stratification and with coefficients in $k$, is…

Representation Theory · Mathematics 2020-07-08 Alessio Cipriani , Jon Woolf

We describe the relationship between the notions of $M$-regular sheaf and $GV$-sheaf in the case of abelian varieties. The former is a natural strengthening of the latter, and we provide an algebraic criterion characterizing it among the…

Algebraic Geometry · Mathematics 2008-08-18 Giuseppe Pareschi , Mihnea Popa

We use homological methods to establish a formal criterion for Generic Vanishing, in the sense originated by Green and Lazarsfeld and pursued further by Hacon and the first author, but in the context of an arbitrary Fourier-Mukai…

Algebraic Geometry · Mathematics 2009-11-18 Giuseppe Pareschi , Mihnea Popa