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This is mainly a review of my results related to the title. We discuss, how many elliptic fibrations and elliptic fibrations with infinite automorphism group (or the Mordell-Weil group) an algebraic K3 surface over an algebraically closed…

Algebraic Geometry · Mathematics 2014-01-27 Viacheslav V. Nikulin

We classify all Jacobian elliptic fibrations on K3 surfaces with finite automorphism group. We also classify all Jacobian elliptic fibrations with finite Mordell-Weil group on K3 surfaces with infinite automorphism group and 2-elementary…

Algebraic Geometry · Mathematics 2024-12-31 Adrian Clingher , Andreas Malmendier

Nikulin has classified all finite abelian groups acting symplectically on a K3 surface and he has shown that the induced action on the K3 lattice $U^3\oplus E_8(-1)^2$ depends only on the group but not on the K3 surface. For all the groups…

Algebraic Geometry · Mathematics 2009-02-23 Alice Garbagnati , Alessandra Sarti

We study automorphism groups of fibered surfaces for finite cyclic covering fibrations of an elliptic surface. We estimate the order of a finite subgroup of automorphism groups in terms of the genus of the fiber, the genus of the base…

Algebraic Geometry · Mathematics 2023-04-18 Hiroto Akaike

We classify finite groups that can act by automorphisms and birational automorphisms on non-trivial Severi-Brauer surfaces over fields of characteristic zero.

Algebraic Geometry · Mathematics 2020-12-18 Constantin Shramov

This paper aims to establish the geometrical finiteness for the natural isometric actions of (birational) automorphism groups on the hyperbolic spaces for K3 surfaces, Enriques surfaces, Coble surfaces, and irreducible symplectic varieties.…

Algebraic Geometry · Mathematics 2026-05-13 Kohei Kikuta

We construct classes of K\"ahler groups that do not have finite classifying spaces and are not commensurable to subdirect products of surface groups. Each of these groups is the fundamental group of the generic fibre of a holomorphic map…

Geometric Topology · Mathematics 2018-12-05 Martin R. Bridson , Claudio Llosa Isenrich

We analyze K3 surfaces admitting an elliptic fibration $E$ and a finite group $G$ of symplectic automorphisms preserving this elliptic fibration. We construct the quotient elliptic fibration $E/G$ comparing its properties to the ones of…

Algebraic Geometry · Mathematics 2009-04-10 Alice Garbagnati

We give a complete classification of finite groups acting symplectically on supersingular K3 surfaces of Artin invariant one. Using work of Dolgachev and Keum, this provides the full classification of tame finite symplectic automorphism…

Algebraic Geometry · Mathematics 2026-05-04 Hisanori Ohashi , Matthias Schütt

Over an algebraically closed field, various finiteness results are known regarding the automorphism group of a K3 surface and the action of the automorphisms on the Picard lattice. We formulate and prove versions of these results over…

Algebraic Geometry · Mathematics 2019-05-14 Martin Bright , Adam Logan , Ronald van Luijk

We show that Mukai's classification of finite groups which may act symplectically on a complex K3 surface extends to positive characteristic $p$ under the assumptions that (i) the order of the group is coprime to $p$ and (ii) either the…

Algebraic Geometry · Mathematics 2007-05-23 Igor Dolgachev , JongHae Keum

We study complex algebraic K3 surfaces of Picard ranks 11,12, and 13 of finite automorphism group that admit a Jacobian elliptic fibration with a section of order two. We prove that the K3 surfaces admit a birational model isomorphic to a…

Algebraic Geometry · Mathematics 2025-05-20 Adrian Clingher , Andreas Malmendier , Flora Poon

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

Nikulin and Vinberg proved that there are only a finite number of lattices of rank $\geq 3$ that are the N\'eron-Severi group of projective K3 surfaces with a finite automorphism group. The aim of this paper is to provide a more geometric…

Algebraic Geometry · Mathematics 2022-02-17 Xavier Roulleau

We classify complex K3 surfaces of zero entropy admitting an elliptic fibration with only irreducible fibers. These surfaces are characterized by the fact that they admit a unique elliptic fibration with infinite automorphism group. We…

Algebraic Geometry · Mathematics 2021-07-15 Giacomo Mezzedimi

We classify, up to automorphisms, the elliptic fibrations on the singular K3 surface $X$ whose transcendental lattice is isometric to $\langle 6\rangle\oplus \langle 2\rangle$.

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…

Algebraic Geometry · Mathematics 2021-03-04 Paola Comparin , Nathan Priddis , Alessandra Sarti

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 finite abelian groups acting on three-dimensional rationally connected varieties. We concentrate on the groups of K3 type, that is, abelian extensions by a cyclic group of groups that faithfully act on a K3 surface. In particular,…

Algebraic Geometry · Mathematics 2026-02-24 Konstantin Loginov , Antoine Pinardin , Zhijia Zhang

We survey our contributions on the classification of elliptic fibrations on K3 surfaces with a non-symplectic involution. We place them in the more general framework of K3 surfaces with an involution without any hypothesis on its fixed…

Algebraic Geometry · Mathematics 2023-04-05 Alice Garbagnati , Cecília Salgado
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