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A holomorphic torsion invariant of K3 surfaces with involution was introduced by the second-named author. In this paper, we completely determine its structure as an automorphic function on the moduli space of such K3 surfaces. On every…

代数几何 · 数学 2018-04-20 Shouhei Ma , Ken-Ichi Yoshikawa

We prove the automorphic property of the invariant of K3 surfaces with involution, which we obtained using equivariant analytic torsion, in the case where the dimension of the moduli space is less than or equal to 2.

代数几何 · 数学 2010-07-19 Ken-Ichi Yoshikawa

This is the abstruct of the revised paper. We study the equivariant analytic torsion for K3 surfaces with an anti-symplectic involution with the invariant lattice M (such a surface is called a 2-elementary K3 surface of type M in this…

代数几何 · 数学 2007-05-23 Ken-Ichi Yoshikawa

We study the boundary behavior of the invariant of $K3^{[2]}$-type manifolds with antisymplectic involution, which we obtained using equivariant analytic torsion. We show the algebraicity of the singularity of the invariant by using the…

代数几何 · 数学 2024-11-22 Dai Imaike

We consider K3 surfaces of Picard rank 14 which admit a purely nonsymplectic automorphism of order 16. The automorphism acts on the second cohomology group with integer coefficients and we compute the invariant sublattice for the action. We…

代数几何 · 数学 2021-03-04 Paola Comparin , Nathan Priddis , Alessandra Sarti

In this note we present the classification of non-symplectic automorphisms of prime order on K3 surfaces, i.e.we describe the topological structure of their fixed locus and determine the invariant lattice in cohomology. We provide new…

代数几何 · 数学 2010-01-27 Michela Artebani , Alessandra Sarti , Shingo Taki

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…

代数几何 · 数学 2020-01-08 Samuel Boissiere , Andrea Cattaneo , Dimitri Markushevich , Alessandra Sarti

We study the geometry of some moduli spaces of twisted sheaves on K3 surfaces. In particular we introduce induced automorphisms from a K3 surface on moduli spaces of twisted sheaves on this K3 surface. As an application we prove the…

代数几何 · 数学 2017-11-29 Chiara Camere , Grzegorz Kapustka , Michal Kapustka , Giovanni Mongardi

We introduce a holomorphic torsion invariant of log-Enriques surfaces of index two with cyclic quotient singularities of type $\frac{1}{4}(1,1)$. The moduli space of such log-Enriques surfaces with $k$ singular points is a modular variety…

微分几何 · 数学 2020-09-23 Xianzhe Dai , Ken-Ichi Yoshikawa

We classify Enriques involutions on a K3 surface, up to conjugation in the automorphism group, in terms of lattice theory. We enumerate such involutions on singular K3 surfaces with transcendental lattice of discriminant smaller than or…

代数几何 · 数学 2022-03-15 Ichiro Shimada , Davide Cesare Veniani

Let X be a K3 surface with an involution g which has non-empty fixed locus X^g and acts non-trivially on a non-zero holomorphic 2-form. We shall construct all such pairs (X, g) in a canonical way, from some better known double coverings of…

代数几何 · 数学 2007-05-23 D. -Q. Zhang

We first prove an isomorphism between the moduli space of smooth cubic threefolds and the moduli space of hyperkaehler fourfolds of K3^{[2]}-type with a non-symplectic automorphism of order three, whose invariant lattice has rank one and is…

代数几何 · 数学 2018-01-30 Samuel Boissière , Chiara Camere , Alessandra Sarti

In this paper, we construct an invariant for irreducible holomorphic symplectic manifolds of $K3^{[2]}$-type with antisymplectic involution by using the equivariant analytic torsion. Moreover, we give a formula for the complex Hessian of…

代数几何 · 数学 2024-06-27 Dai Imaike

We give new relations between geometric invariants of $K3$ surfaces with purely non-symplectic automorphisms of order 4 and 6. Our approach is based on a comparison of two methods of computation of formulas for the Euler characteristic of…

代数几何 · 数学 2023-12-13 Dominik Burek

In this paper we study K3 surfaces with a non-symplectic automorphism of order 3. In particular, we classify the topological structure of the fixed locus of such automorphisms and we show that it determines the action on cohomology. This…

代数几何 · 数学 2008-01-22 Michela Artebani , Alessandra Sarti

We study the class of complex algebraic K3 surfaces admitting an embedding of H+E8+E8 inside the Neron-Severi lattice. These special K3 surfaces are classified by a pair of modular invariants, in the same manner that elliptic curves over…

代数几何 · 数学 2007-05-23 Adrian Clingher , Charles F. Doran

We introduce the notion of induced automorphisms in order to state a criterion to determine whether a given automorphism on a manifold of $K3^{[n]}$ type is, in fact, induced by an automorphism of a $K3$ surface and the manifold is a moduli…

代数几何 · 数学 2015-06-12 Giovanni Mongardi , Malte Wandel

We study irreducible holomorphic symplectic manifolds deformation equivalent to Hilbert schemes of points on a $K3$ surface and admitting a non-symplectic involution. We classify the possible discriminant forms of the invariant and…

代数几何 · 数学 2019-02-15 Chiara Camere , Alberto Cattaneo , Andrea Cattaneo

We provide new examples of anti-symplectic involutions on moduli spaces of stable sheaves on K3 surfaces. These involutions are constructed through (anti) autoequivalences of the bounded derived category of coherent sheaves on K3 surfaces…

代数几何 · 数学 2025-07-22 Daniele Faenzi , Grégoire Menet , Yulieth Prieto-Montañez

In this paper, we study non-symplectic automorphisms of order 3 on algebraic $K3$ surface over $\mathbb{C}$ which act trivially on the N\'{e}ron-Severi lattice. In particular we shall characterize their fixed locus in terms of the…

代数几何 · 数学 2010-12-27 Shingo Taki
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