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Related papers: Counting elliptic fibrations on K3 surfaces

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We describe a method to show that certain elliptic surfaces do not admit purely inseparable multisections (equivalently, that genus one curves over function fields admit no points over the perfect closure of the base field) and use it to…

Algebraic Geometry · Mathematics 2021-12-07 Daniel Bragg , Max Lieblich

For families of $K3$ surfaces, we establish a sufficient criterion for real or complex multiplication. Our criterion is arithmetic in nature. It may show, at first, that the generic fibre of the family has a nontrivial endomorphism field.…

Algebraic Geometry · Mathematics 2020-02-04 Andreas-Stephan Elsenhans , Jörg Jahnel

We find new examples of complex surfaces with countably many non-isomorphic algebraic structures. Here is one such example: take an elliptic curve $E$ in $\mathbb P^2$ and blow up nine general points on $E$. Then the complement $M$ of the…

Complex Variables · Mathematics 2023-03-21 Anna Abasheva , Rodion Déev

We show that a general elliptic K3 surface with a section is determined uniquely by its discriminant, which is a configuration of 24 points on the projective line. It follows that a general elliptic K3 surface with a section can be…

Algebraic Geometry · Mathematics 2019-10-25 Kenji Hashimoto , Kazushi Ueda

We compute the genus one family Gromov-Witten invariants of K3 surfaces for non-primitive classes. These calculations verify Gottsche-Yau-Zaslow formula for non-primitive classes with index two. Our approach is to use the genus two…

Symplectic Geometry · Mathematics 2007-05-23 Junho Lee , Naichung Conan Leung

We give more details to our examples in [9] of K3 surfaces over C such that they have infinite automorphism group but it preserves some elliptic pencil of the K3

Algebraic Geometry · Mathematics 2020-06-09 Viacheslav V. Nikulin

We study the geometry of the K3 surfaces $X$ with a finite number automorphisms and Picard number $\geq 3$. We describe these surfaces classified by Nikulin and Vinberg as double covers of simpler surfaces or embedded in a projective space.…

Algebraic Geometry · Mathematics 2025-12-10 Xavier Roulleau

We give an asymptotic formula for the number of elliptic curves over $\mathbb{Q}$ with bounded Faltings height. Silverman has shown that the Faltings height for elliptic curves over number fields can be expressed in terms of modular…

Number Theory · Mathematics 2016-02-18 Ruthi Hortsch

The theorem referred to in the title is a technical result that is needed for the classification of elliptic and K3 fibrations birational to Fano 3-fold hypersurfaces in weighted projective space. We present a complete proof of the Curve…

Algebraic Geometry · Mathematics 2007-05-23 Daniel Ryder

We give a simple and explicit constructions of various semi-discrete surfaces and discrete $K$-surfaces in terms of the Jacobi elliptic functions using $\tau$-functions. Their periodicities are also determined.

Differential Geometry · Mathematics 2024-06-26 Kenji Kajiwara , Shota Shigetomi , Seiichi Udagawa

We calculate the automorphism group of certain Enriques surfaces. The Enriques surfaces that we investigate include very general $n$-nodal Enriques surfaces and very general cuspidal Enriques surfaces. We also describe the action of the…

Algebraic Geometry · Mathematics 2021-06-16 Simon Brandhorst , Ichiro Shimada

To a pair of elliptic curves, one can naturally attach two K3 surfaces: the Kummer surface of their product and a double cover of it, called the Inose surface. They have prominently featured in many interesting constructions in algebraic…

Algebraic Geometry · Mathematics 2017-12-20 Abhinav Kumar , Masato Kuwata

Let $k \subset {\mathbb C}$ be a number field and ${\mathcal E}$ be an elliptic curve defined over $k(t)$, the rational function field of the projective line ${\mathbb P}^1_k$, is isomorphic to the generic fiber of an elliptic surface…

Number Theory · Mathematics 2025-12-09 Sajad Salami , Arman Shamsi Zargar

We present a complete list of extremal elliptic K3 surfaces. There are altogether 325 of them. The first 112 coincides with Miranda-Persson's list for semi-stable ones. The data include the transcendental lattice which determines uniquely…

Algebraic Geometry · Mathematics 2007-05-23 I. Shimada , D. -Q. Zhang

We use classification of non-symplectic automorphisms of K3 surfaces to obtain a partial classification of log del Pezzo surfaces of index three. We can classify those with "Multiple Smooth Divisor Property", whose definition we will give.…

Algebraic Geometry · Mathematics 2012-03-27 Hisanori Ohashi , Shingo Taki

The aim of this paper is to derive explicitly a connection between the Zagier elliptic trilogarithm and Mahler measures of a certain family of three-variable polynomials defining K3 surfaces. In addition, we prove some linear relations…

Number Theory · Mathematics 2014-03-18 Detchat Samart

We determine all posible orders of automorphisms of finite order of complex K3 surfaces or of K3 surfaces in characteristic $p>3$. E.g., a positive integer $N$ is the order of an automorphism of a complex K3 surface if and only if…

Algebraic Geometry · Mathematics 2013-09-24 JongHae Keum

We determine all possible orders of automorphisms of complex K3 surfaces. A positive integer N is the order of an automorphism of a complex K3 surface if and only if $\phi(N) \leq 20$ where $\phi$ is the Euler function.

Algebraic Geometry · Mathematics 2012-06-06 JongHae Keum

In this paper we discuss the number of Enriques quotients of a fixed K3 surface. We prove the finiteness and unboundedness of the number. We also show an example of Kummer surface of product type where we can successfully classify all the…

Algebraic Geometry · Mathematics 2009-09-30 Hisanori Ohashi

We use automorphic forms to prove that a compact family of Kaehler K3 surfaces with constant Picard number is isotrivial.

alg-geom · Mathematics 2008-02-03 Richard E. Borcherds , Ludmil Katzarkov , Tony Pantev , N. I. Shepherd-Barron
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