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Related papers: Coble duality for Jacobian Kummer fourfolds

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We show how for every integer n one can explicitly construct n distinct plane quartics and one hyperelliptic curve over the complex numbers all of whose Jacobians are isomorphic to one another as abelian varieties without polarization. When…

Algebraic Geometry · Mathematics 2007-05-23 Everett W. Howe

In this article, we examine the arithmetic aspect of the Kummer-surface-type CY 3-folds $\hat{T/G}$, characterized by the crepant resolution of 3-torus-orbifold $T/G$ with only isolated singularities. Up to isomorphisms, there are only two…

Algebraic Geometry · Mathematics 2007-05-23 Shi-shyr Roan

In the prequel to this paper, two versions of Le Potier's strange duality conjecture for sheaves over abelian surfaces were studied. A third version is considered here. In the current setup, the isomorphism involves moduli spaces of sheaves…

Algebraic Geometry · Mathematics 2014-02-28 Barbara Bolognese , Alina Marian , Dragos Oprea , Kota Yoshioka

Mumford defined a natural isomorphism between the intermediate jacobian of a conic-bundle over $P^2$ and the Prym variety of a naturally defined \'etale double cover of the discrminant curve of the conic-bundle. Clemens and Griffiths used…

alg-geom · Mathematics 2008-02-03 E. Izadi

We describe a method to determine all the isomorphism classes of principal polarizations of the modular abelian surfaces $A_f$ with quaternionic multiplication attached to a normalized newform $f$ without complex multiplication. We include…

Number Theory · Mathematics 2015-05-13 Josep Gonzalez , Jordi Guardia

The classical Kummer construction attaches to an abelian surface a K3 surface. As Shioda and Katsura showed, this construction breaks down for supersingular abelian surfaces in characteristic two. Replacing supersingular abelian surfaces by…

Algebraic Geometry · Mathematics 2007-05-23 Stefan Schroeer

Results on stability of tautological sheaves on Hilbert schemes of points are extended to higher dimensions and transferred to abelian surfaces and to the restriction of tautological sheaves to generalised Kummer varieties. This provides a…

Algebraic Geometry · Mathematics 2013-08-21 Malte Wandel

We study the intersection cohomology of the theta divisors on Jacobians of nonhyperelliptic curves.

alg-geom · Mathematics 2008-02-03 P. Bressler , J. -L. Brylinski

A conjecture by Corvaja and Zannier predicts that smooth, projective, simply connected varieties over a number field with Zariski dense set of rational points have the Hilbert Property; this was proved by Demeio for Kummer surfaces which…

Number Theory · Mathematics 2025-08-12 Damián Gvirtz-Chen , Zhizhong Huang

In this article we give explicit equations for two Shimura families of genus 4 curves whose Jacobians are abelian fourfolds of Mumford type. These are the first explicit examples of abelian varieties over $\mathbb{Q}$ with endomorphism…

Algebraic Geometry · Mathematics 2025-10-30 Thomas Bouchet , Jeroen Hanselman , Andreas Pieper , Sam Schiavone

In this survey of works on a characterization of Jacobians and Prym varieties among indecomposable principally polarized abelian varieties via the soliton theory we focus on a certain circle of ideas and methods which show that the…

Algebraic Geometry · Mathematics 2022-02-10 Igor Krichever

We compute the class of arithmetic genus two Teichmueller curves in the Picard group of pseudo-Hilbert modular surfaces, distinguished according to their torsion order and spin invariant. As an application, we compute the number of genus…

Algebraic Geometry · Mathematics 2015-04-03 André Kappes , Martin Moeller

In this paper we give a birational model for the theta divisor of the intermediate Jacobian of a generic cubic threefold $X$. We use the standard realization of $X$ as a conic bundle and a $4-$dimensional family of plane quartics which are…

Algebraic Geometry · Mathematics 2007-05-23 Michela Artebani , Remke Kloosterman , Marco Pacini

Let $X$ (resp. $Y$) be a curve of genus 1 (resp. 2) over a base field $k$ whose characteristic does not equal 2. We give criteria for the existence of a curve $Z$ over $k$ whose Jacobian is up to twist (2,2,2)-isogenous to the products of…

Algebraic Geometry · Mathematics 2020-12-17 Jeroen Hanselman , Sam Schiavone , Jeroen Sijsling

We prove the following converse of Riemann's Theorem: let (A,\Theta) be an indecomposable principally polarized abelian variety whose theta divisor can be written as a sum of a curve and a codimension two subvariety \Theta=C+Y. Then C is…

Algebraic Geometry · Mathematics 2018-10-31 Stefan Schreieder

We give a description of the intermediate Jacobian fibration attached to a general complex cubic fourfold $X$ containing a plane as a Lagrangian subfibration of a moduli space of torsion sheaves on the K3 surface associated to $X$ up to a…

Algebraic Geometry · Mathematics 2025-01-23 Dominique Mattei

We study singular curves from analytic point of view. We give completely analytic proofs for the Serre duality and a generalized Abel's theorem. We also reconsider Picard varieties, Albanese varieties and generalized Jacobi varieties of…

Complex Variables · Mathematics 2019-04-09 Yukitaka Abe

We formulate three versions of a strange duality conjecture for sections of the Theta bundles on the moduli spaces of sheaves on abelian surfaces. As supporting evidence, we check the equality of dimensions on dual moduli spaces, answering…

Algebraic Geometry · Mathematics 2007-10-04 Alina Marian , Dragos Oprea

We construct a three-parameter family of non-hyperelliptic and bielliptic plane genus-three curves whose associated Prym variety is two-isogenous to the Jacobian variety of a general hyperelliptic genus-two curve. Our construction is based…

Algebraic Geometry · Mathematics 2022-05-26 Adrian Clingher , Andreas Malmendier , Tony Shaska

It is conjectured that there exist finitely many isomorphism classes of simple endomorphism algebras of abelian varieties of GL_2-type over \Q of bounded dimension. We explore this conjecture when particularized to quaternion endomorphism…

Number Theory · Mathematics 2011-11-10 Nils Bruin , E. Victor Flynn , Josep Gonzalez , Victor Rotger