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For a very general product $A$ of seven or more elliptic curves, every rational curve on the Kummer variety of $A$ projects trivially onto the Kummer variety of at least one of its factors. As a consequence, a very general member of certain…

Algebraic Geometry · Mathematics 2020-09-03 Bo-Hae Im , Michael Larsen , Sailun Zhan

We apply the Yau-Zaslow-Beauville method to compute the Euler characteristic of the generalized Kummer varieties attached to a complex abelian surface (a calculation also done by Goettsche and Soergel by different methods). It is related to…

alg-geom · Mathematics 2007-05-23 Olivier Debarre

We calculate the automorphism group of the Kummer surface associated with a curve of genus 2 or the product of two elliptic curves in characteristic two under the assumption that the Kummer surface is a $K3$ surface. Moreover we discuss the…

Algebraic Geometry · Mathematics 2025-12-24 Shigeyuki Kondo , Shigeru Mukai

An abelian variety admits only a finite number of isomorphism classes of principal polarizations. The paper gives an interpretation of this number in terms of class numbers of definite Hermitian forms in the case of a product of elliptic…

Algebraic Geometry · Mathematics 2007-05-23 Herbert Lange

We explicitly construct the Kummer variety associated to the Jacobian of a hyperelliptic curve of genus 3 that is defined over a field of characteristic not equal to 2 and has a Weierstra{\ss} point defined over the same field. We also…

Algebraic Geometry · Mathematics 2019-02-20 J. Steffen Müller

We compute the Euler characteristics of the generalized Kummer schemes associated to $A\times Y$, where $A$ is an abelian variety and $Y$ is a smooth quasi-projective variety. When $Y$ is a point, our results prove a formula conjectured by…

Algebraic Geometry · Mathematics 2015-08-10 Junliang Shen

We study the birational geometry of the Kummer surfaces associated to the Jacobian varieties of genus two curves, with a particular focus on fields of characteristic two. In order to do so, we explicitly compute a projective embedding of…

Algebraic Geometry · Mathematics 2026-01-30 Alvaro Gonzalez-Hernandez

Let $A^{[[n]]}$ denote the $2(n - 1)$-dimensional generalised Kummer variety constructed from the abelian surface $A$. Further, let $X$ be an arbitrary smooth projective surface with $\int_X c_1(X)^2 \neq 0$, and $X^{[k]}$ the Hilbert…

Algebraic Geometry · Mathematics 2007-05-23 Marc Arnold Nieper-Wisskirchen

We relate the Brauer group of a Kummer surface to the Brauer group of the corresponding abelian surface. For many pairs of elliptic curves over the rational numbers we prove that the Kummer surface attached to their product has trivial…

Algebraic Geometry · Mathematics 2010-11-09 Alexei N. Skorobogatov , Yuri G. Zarhin

We introduce and study a new way to catagorize supersingular abelian varieties defined over a finite field by classifying them as fully maximal, mixed, or fully minimal. The type of $A$ depends on the normalized Weil numbers of $A$ and its…

Number Theory · Mathematics 2017-11-06 Valentijn Karemaker , Rachel Pries

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

Our main result is a combinatorial characterization of when a horospherical variety has (at worst) quotient singularities. Using this characterization, we show that every quasiprojective horospherical variety with quotient singularities is…

Algebraic Geometry · Mathematics 2026-03-31 Sean Monahan

We study property $N_p$ for Kummer varieties embedded by a power of an ample line bundle.

Algebraic Geometry · Mathematics 2014-02-26 Sofia Tirabassi

We obtain a recursive formula for the characteristic number of degree $d$ curves in $\mathbb{P}^2$ with prescribed singularities (of type $A_k$) that are tangent to a given line. The formula is in terms of the characteristic number of…

Algebraic Geometry · Mathematics 2019-09-12 Anantadulal Paul

In this article we study derived (auto)equivalences of generalized Kummer varieties $\mathrm{Kum}^n(A)$. We provide an answer to a question raised by Namikawa by showing that the generalized Kummer varieties $\mathrm{Kum}^n(A)$ and…

Algebraic Geometry · Mathematics 2026-02-25 Pablo Magni

This paper gives a conjectural characterization of those elliptic curves over the field of complex numbers which "should" be covered by standard modular curves. The elliptic curves in question all have algebraic j-invariant, so they can be…

alg-geom · Mathematics 2015-06-30 Kenneth A. Ribet

We study syzygies of Kummer varieties proving that their behavior is half of the abelian varieties case. Namely, an $m$-th power of an ample line bundle on a Kummer variety satisfies the Green-Lazarsfeld property $(N_p)$, if $m >…

Algebraic Geometry · Mathematics 2023-09-06 Federico Caucci

We define Enriques varieties as a higher dimensional generalization of Enriques surfaces and construct examples by using fixed point free automorphisms on generalized Kummer varieties. We also classify all automorphisms of generalized…

Algebraic Geometry · Mathematics 2010-11-16 Samuel Boissiere , Marc Nieper-Wisskirchen , Alessandra Sarti

We construct a birational model of the generalised Kummer fourfold of the Jacobian of a genus two curve, based on a geometric interpretation of the addition law on this Jacobian, obtained by the properties of the linear system of cubics on…

Algebraic Geometry · Mathematics 2025-05-23 Samuel Boissiere , Marc Nieper-Wisskirchen , Gregory Sankaran

We discuss several geometric features of a Kummer surface associated with a (1,2)-polarized abelian surface defined over the field of complex numbers. In particular, we show that any such Kummer surface can be modeled as the double cover of…

Algebraic Geometry · Mathematics 2017-04-18 Adrian Clingher , Andreas Malmendier
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