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Related papers: On lattice-polarized K3 surfaces

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We compute the image of the $p$-adic period map for polarized K3 surfaces with supersingular reduction. This gives rise to a Rapoport-Zink type uniformization of their moduli space by an explicit open rigid analytic subvariety of a local…

Algebraic Geometry · Mathematics 2022-05-30 Tobias Kreutz

We study threefolds fibred by K3 surfaces admitting a lattice polarization by a certain class of rank 19 lattices. We begin by showing that any family of such K3 surfaces is completely determined by a map from the base of the family to the…

Algebraic Geometry · Mathematics 2020-06-12 Charles F. Doran , Andrew Harder , Andrey Y. Novoseltsev , Alan Thompson

The present article is concerned with mirror symmetry for generalized K3 surfaces, with particular emphasis on complex and K\"ahler rigid structures. Inspired by the works of Dolgachev, Aspinwall-Morrison and Huybrechts, we introduce a…

Algebraic Geometry · Mathematics 2024-11-28 Atsushi Kanazawa

We describe two geometrically meaningful compactifications of the moduli space of elliptic K3 surfaces via stable slc pairs, for two different choices of a polarizing divisor, and show that their normalizations are two different toroidal…

Algebraic Geometry · Mathematics 2023-03-22 Valery Alexeev , Adrian Brunyate , Philip Engel

We give construction of singular K3 surfaces with discriminant 3 and 4 as double coverings over the projective plane. Focusing on the similarities in their branching loci, we can generalize this construction, and obtain a three dimensional…

Algebraic Geometry · Mathematics 2019-03-08 Taiki Takatsu

Classification of real K3 surfaces X with a non-symplectic involution \tau is considered. For some exactly defined and one of the weakest possible type of degeneration (giving the very reach discriminant), we show that the connected…

Algebraic Geometry · Mathematics 2009-12-08 Viacheslav V. Nikulin , Sachiko Saito

We investigate the interplay between the moduli spaces of ample <2>-polarized IHS manifolds of type K3^[2] and of IHS manifolds of type K3^[2] with a nonsymplectic involution with invariant lattice of rank one. In particular we…

Algebraic Geometry · Mathematics 2020-01-08 Samuel Boissiere , Andrea Cattaneo , Dimitri Markushevich , Alessandra Sarti

We study lattice polarizations of five exceptional pairs of families of K3 surfaces obtained via compactifications of strange dual pairs of bimodal singularities. We show that the polarizations induced by embedding these paired families in…

Algebraic Geometry · Mathematics 2022-12-02 Makiko Mase , Ursula Whitcher

Inspired by the Dolgachev-Nikulin-Pinkham mirror symmetry for lattice-polarized K3 surfaces, we study its analogue for abelian surfaces. In this paper, we introduce lattice-polarized abelian surfaces and construct their coarse moduli…

Algebraic Geometry · Mathematics 2026-02-10 Yu-Wei Fan , Kuan-Wen Lai

The aim of these notes is to acquaint the reader with important objects in complex algebraic geometry: K3 surfaces and their higher-dimensional analogs, hyperk\"ahler manifolds. These manifolds are interesting from several points of view:…

Algebraic Geometry · Mathematics 2020-11-18 Olivier Debarre

The Hessian of a general cubic surface is a nodal quartic surface, hence its desingularisation is a K3 surface. We determine the transcendental lattice of the Hessian K3 surface for various cubic surfaces (with nodes and/or Eckardt points…

Algebraic Geometry · Mathematics 2007-05-23 Elisa Dardanelli , Bert van Geemen

We consider two K3 surfaces defined over an arbitrary field, together with a smooth proper moduli space of stable sheaves on each. When the moduli spaces have the same dimension, we prove that if the \'etale cohomology groups (with Q_ell…

Algebraic Geometry · Mathematics 2021-05-14 Sarah Frei

We prove that the locus of Noether-Lefschetz general polarized K3 surfaces of degree at most 8 defined over the rational numbers is Zariski dense in the moduli space. Previously, this was proved by van Luijk in the quartic case, and it…

Algebraic Geometry · Mathematics 2026-03-04 Asher Auel , Henry Scheible

These are lecture notes based on a series of talks given by the authors at the CIMPA Summer School on Algebraic Geometry and Hypergeometric Functions held in Istanbul in Summer of 2005. They provide an introduction to a recent work on the…

Algebraic Geometry · Mathematics 2007-05-23 Igor V. Dolgachev , Shigeyuki Kondo

In this paper we investigate two stratifications of the moduli space of elliptically fibred K3 surfaces. The first comes from Shimada's classification of connected components of elliptically fibred K3 surfaces and is closely related to the…

Algebraic Geometry · Mathematics 2021-08-31 Klaus Hulek , Michael Lönne

Looijenga has introduced new compactifications of locally symmetric varieties that give a complete understanding of the period map from the GIT moduli space of plane sextics to the Baily-Borel compactification of the moduli space polarized…

Algebraic Geometry · Mathematics 2017-11-09 Radu Laza , Kieran O'Grady

By work of Looijenga and others, one has a good understanding of the relationship between GIT and Baily-Borel compactifications for the moduli spaces of degree 2 K3 surfaces, cubic fourfolds, and a few other related examples. The…

Algebraic Geometry · Mathematics 2019-08-15 Radu Laza , Kieran G. O'Grady

In this paper, we study moduli spaces of sextic curves with simple singularities. Through period maps of K3 surfaces with ADE singularities, we prove that such moduli spaces admit algebraic open embeddings into arithmetic quotients of type…

Algebraic Geometry · Mathematics 2025-12-19 Chenglong Yu , Zhiwei Zheng , Yiming Zhong

We describe a notion of lattice polarization for rational elliptic surfaces and weak del Pezzo surfaces, and describe the complex moduli of the former and the K\"{a}hler cone of the latter. We then propose a version of mirror symmetry…

Algebraic Geometry · Mathematics 2018-09-28 Charles F. Doran , Alan Thompson

Strange duality is shown to hold over generic $K3$ surfaces in a large number of cases. The isomorphism for elliptic $K3$ surfaces is established first via Fourier-Mukai techniques. Applications to Brill-Noether theory for sheaves on $K3$s…

Algebraic Geometry · Mathematics 2019-12-19 Alina Marian , Dragos Oprea , Kota Yoshioka