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Related papers: K3 surfaces of Kummer type in characteristic two

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Kummer surfaces are special quartic surfaces that admit $16$ nodes. The automorphisms of K3 Kummer surfaces are rich and complicated. Based on the results of Keum and Kond\=o, and as a continuation of the recent result by He and Yang, we…

Algebraic Geometry · Mathematics 2024-01-17 Zhuang He

We study the distribution of algebraic points on K3 surfaces.

Algebraic Geometry · Mathematics 2007-05-23 Fedor Bogomolov , Yuri Tschinkel

We proved the existence of rational curves in every linear system on a general K3 surface and that all rational curves in the hyperplane class are nodal on a general K3 surface of small genus.

Algebraic Geometry · Mathematics 2007-05-23 Xi Chen

We pose the problem to determine explicit defining equations of various elliptic fibrations on a given $K3$ surface, and study the case of the Kummer surfaces of the product of two elliptic curves.

Algebraic Geometry · Mathematics 2008-11-09 Masato Kuwata , Tetsuji Shioda

In this paper we study the automorphisms group of some $K3$ surfaces which are double covers of the projective plane ramified over a smooth sextic plane curve. More precisely, we study the case of a $K3$ surface of Picard rank two such that…

Algebraic Geometry · Mathematics 2007-05-23 Federica Galluzzi , Giuseppe Lombardo

It is known (work of Galluzzi, Lombardo, Dolgachev and Naruki) that there is a unique K3 surface X which corresponds to a genus 2 curve C such that X has a Shioda-Inose structure with quotient birational to the Kummer surface of the…

Algebraic Geometry · Mathematics 2013-07-05 Abhinav Kumar

We prove that any non-isotrivial elliptic K3 surface over an algebraically closed field $k$ of arbitrary characteristic contains infinitely many rational curves. In the case when $\mathrm{char}(k)\neq 2,3$, we prove this result for any…

Algebraic Geometry · Mathematics 2020-01-20 Salim Tayou

We present three interesting projective models of the supersingular K3 surface X in characteristic 5 with Artin invariant 1. For each projective model, we determine smooth rational curves on X with the minimal degree and the projective…

Algebraic Geometry · Mathematics 2014-08-26 Toshiyuki Katsura , Shigeyuki Kondo , Ichiro Shimada

We develop a mixed-characteristic version of the Mori-Mukai technique for producing rational curves on K3 surfaces. We reduce modulo p, produce rational curves on the resulting K3 surface over a finite field, and lift to characteristic…

Algebraic Geometry · Mathematics 2019-12-19 Fedor Bogomolov , Brendan Hassett , Yuri Tschinkel

We find two natural spherical functors associated to the Kummer surface and analyse how their induced twists fit with Bridgeland's conjecture on the derived autoequivalence group of a complex algebraic K3 surface.

Algebraic Geometry · Mathematics 2019-09-18 Andreas Krug , Ciaran Meachan

The main theorem of "S. J. Kov\'acs: The cone of curves of a K3 surface, Math. Ann. 300 (1994), no. 4, 681-691" is proved in arbitrary characteristic. The proof is essentially the same as in the original paper where it was stated only over…

Algebraic Geometry · Mathematics 2013-09-24 Sándor J Kovács

We construct K3 surfaces over number fields that have good reduction everywhere. These do not exists over the rational numbers, by results of Abrashkin and Fontaine. Our surfaces exist for three quadratic number fields, and an infinite…

Algebraic Geometry · Mathematics 2025-06-18 Stefan Schröer

A generalized Kummer surface $X$ obtained as the quotient of an abelian surface by a symplectic automorphism of order 3 contains a $9\mathbf{A}_{2}$-configuration of $(-2)$-curves. Such a configuration plays the role of the…

Algebraic Geometry · Mathematics 2021-05-18 David Kohel , Xavier Roulleau , Alessandra Sarti

Surfaces with concentric $K$-contours and parallel $K$-contours in Euclidean $3$-space are defined. Crucial examples are presented and characterization of them are given.

Differential Geometry · Mathematics 2024-04-23 Shoichi Fujimori , Yu Kawakami , Masatoshi Kokubu

Given d in IN, we prove that all smooth K3 surfaces (over any field of characteristic p other than 2,3) of degree greater than 84d^2 contain at most 24 rational curves of degree at most d. In the exceptional characteristics, the same bounds…

Algebraic Geometry · Mathematics 2022-03-07 Sławomir Rams , Matthias Schütt

We construct and study curves with low H-constants on abelian and K3 surfaces. Using the Kummer $(16_{6})$-configurations on Jacobian surfaces and some $(16_{10})$-configurations of curves on $(1,3)$-polarized Abelian surfaces, we obtain…

Algebraic Geometry · Mathematics 2017-12-27 Xavier Roulleau

We shall characterize the Fermat K3 surface, among all complex K3 surfaces, by means of its finite group symmetries.

Algebraic Geometry · Mathematics 2007-05-23 Keiji Oguiso

We complete the remaining cases of the conjecture predicting existence of infinitely many rational curves on K3 surfaces in characteristic zero, prove almost all cases in positive characteristic and improve the proofs of the previously…

Algebraic Geometry · Mathematics 2023-05-24 Xi Chen , Frank Gounelas , Christian Liedtke

We prove the existence of $(20-2K^2)$-dimensional families of simply-connected surfaces with ample canonical class, $p_g=1$, and $1 \leq K^2 \leq 9$, and we study the relation with configurations of rational curves in K3 surfaces via…

Algebraic Geometry · Mathematics 2021-10-22 Javier Reyes , Giancarlo Urzúa

We study a family of lattice polarized $K3$ surfaces which is an extension of the family of Kummer surfaces derived from principally polarized Abelian surfaces. Our family has two special properties. First, it is coming from a resolution of…

Algebraic Geometry · Mathematics 2023-06-13 Atsuhira Nagano , Hironori Shiga