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A complex compact surface which carries an automorphism of positive topological entropy has been proved by Cantat to be either a torus, a K3 surface, an Enriques surface or a rational surface. Automorphisms of rational surfaces are quite…

Algebraic Geometry · Mathematics 2015-09-02 Julie Déserti , Julien Grivaux

We consider rational surface automorphisms with positive entropy. A Fatou component is said to be a rotation domain if the automorphism induces a torus action on it. Here we construct a rational surface automorphism with positive entropy…

Dynamical Systems · Mathematics 2009-07-21 Eric Bedford , Kyounghee Kim

We compare real and complex dynamics for automorphisms of rational surfaces that are obtained by lifting \chg{some} quadratic birational maps of the plane. In particular, we show how to exploit the existence of an invariant cubic curve to…

Dynamical Systems · Mathematics 2018-08-28 Jeffrey Diller , Kyounghee Kim

We determine the minimum positive entropy of complex Enriques surface automorphisms. This together with McMullen's work completes the determination of the minimum positive entropy of complex surface automorphisms in each class of…

Algebraic Geometry · Mathematics 2020-12-23 Keiji Oguiso , Xun Yu

For two-dimensional complex tori, we characterize the set of all values of positive entropy that arise from automorphisms. For K3 surfaces, we give suffcient conditions for a positive value to be the entropy of some automorphism.

Dynamical Systems · Mathematics 2012-02-24 Paul Reschke

We classify Enriques surfaces with smooth K3 cover and finite automorphism group in arbitrary positive characteristic. The classification is the same as over the complex numbers except that some types are missing in small characteristics.…

Algebraic Geometry · Mathematics 2017-04-07 Gebhard Martin

We show the existence of a rational surface automorphism of positive entropy with a given number of Siegel disks. Moreover, among automorphisms obtained from quadratic birational maps on the projective plane fixing irreducible cubic curves,…

Dynamical Systems · Mathematics 2020-09-18 Takato Uehara

We classify complex projective surfaces with an automorphism of positive entropy for which the unique invariant measure of maximal entropy is absolutely continuous with respect to Lebesgue measure.

Dynamical Systems · Mathematics 2014-10-07 Serge Cantat , Christophe Dupont

Using McMullen's rational surface automorphisms, we construct projective rational manifolds of higher dimension admitting automorphisms of positive entropy with arbitrarily high number of Siegel disks and those with exactly one Siegel disk.

Algebraic Geometry · Mathematics 2009-06-24 Keiji Oguiso , Fabio Perroni

This paper is a survey about $K3$ surfaces with an automorphism and log rational surfaces, in particular, log del Pezzo surfaces and log Enriques surfaces. It is also a reproduction on my talk at "Mathematical structures of integrable…

Algebraic Geometry · Mathematics 2019-01-03 Shingo Taki

The aim of this paper is to construct many examples of rational surface automorphisms with positive entropy by means of the concept of orbit data. We show that if an orbit data satisfies some mild conditions, then there exists an…

Dynamical Systems · Mathematics 2013-10-30 Takato Uehara

We derive a characterization of the complex projective K3 surfaces which have automorphisms of positive entropy in term of their N\'eron-Severi lattices. Along the way, we classify the projective K3 surfaces of zero entropy with infinite…

Algebraic Geometry · Mathematics 2022-11-15 Xun Yu

We construct examples of hyperKahler manifolds of Picard number two with automorphisms of positive entropy via derived automorphisms of K3 surfaces of Picard number one. Our hyperKahler manifolds are constructed as moduli spaces of…

Algebraic Geometry · Mathematics 2016-08-22 Genki Ouchi

In this paper, we give an example of an autoequivalence with positive categorical entropy (in the sense of Dimitrov, Haiden, Katzarkov and Kontsevich) for any surface containing a (-2)-curve. Then we show that this equivalence gives another…

Algebraic Geometry · Mathematics 2021-04-23 Dominique Mattei

We construct k-parameter families of rational surface automorphisms for any k. These are automorphisms of surfaces X, which are constructed from iterated blowups over the projective plane. In certain cases: we are able to determine the…

Complex Variables · Mathematics 2009-02-28 Eric Bedford , Kyounghee Kim

Recently Oguiso showed the existence of K3 surfaces that admit a fixed point free automorphism of positive entropy. The K3 surfaces used by Oguiso have a particular rank two Picard lattice. We show, using results of Beauville, that these…

Algebraic Geometry · Mathematics 2012-12-12 Dino Festi , Alice Garbagnati , Bert van Geemen , Ronald van Luijk

We prove that there is a projective K3 surface admitting a (fixed point) free automorphism of positive entropy and that no smooth compact K\"ahler surface other than projective K3 surfaces and their blow up admits such an automorphism.

Algebraic Geometry · Mathematics 2012-07-02 Keiji Oguiso

McMullen proved that there exists an automorphism of minimal topological entropy on a projective K3 surface. We derive equations for the surface and its automorphism. We reconstruct the surface and its automorphism from the Hodge theoretic…

Algebraic Geometry · Mathematics 2022-09-27 Simon Brandhorst , Noam D. Elkies

We give an alternative proof of a result of Cantat and Dupont, showing that any automorphism of a K3 surface with measure of maximal entropy in the Lebesgue class must be a Kummer example. Our method exploits the existence of Ricci-flat…

Dynamical Systems · Mathematics 2021-11-09 Simion Filip , Valentino Tosatti

We prove gap theorems for entropy norms on automorphism groups of K3 surfaces, Enriques surfaces, and irreducible holomorphic symplectic manifolds. We also study the achirality of automorphisms of K3 surfaces and Enriques surfaces in terms…

Algebraic Geometry · Mathematics 2026-04-17 Kohei Kikuta , Yuta Takada , Taiki Takatsu
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