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Related papers: On linearization problems in the plane Cremona gro…

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We prove that, except for a few cases, stable linearizability of finite subgroups of the plane Cremona group implies linearizability.

Algebraic Geometry · Mathematics 2015-10-13 Yuri Prokhorov

We give a complete solution of the linearization problem in the plane Cremona group over an algebraically closed field of characteristic zero.

Algebraic Geometry · Mathematics 2024-12-17 Antoine Pinardin , Arman Sarikyan , Egor Yasinsky

The aim of this paper is to give a finer geometric description of the algebraic varieties parametrizing conjugacy classes of nonsolvable subgroups in the plane Cremona group.

Algebraic Geometry · Mathematics 2012-02-14 Vladimir Igorevich Tsygankov

This article gives the proof of results announced in [J. Blanc, Finite Abelian subgroups of the Cremona group of the plane, C.R. Acad. Sci. Paris, S\'er. I 344 (2007), 21-26.] and some description of automorphisms of rational surfaces.…

Algebraic Geometry · Mathematics 2010-11-22 Jérémy Blanc

This work presents the conjugacy classes of finite abelian subgroups of the Cremona group of the plane. Using a well-known theory, this problem amounts to the study of automorphism groups of some Del Pezzo surfaces and conic bundles. We…

Algebraic Geometry · Mathematics 2007-05-23 Jérémy Blanc

We complete the classical and modern work on the classification of conjugacy classes of finite subgroups of the group of birational transformations of the complex projective plane.

Algebraic Geometry · Mathematics 2009-04-13 Igor V. Dolgachev , Vasily A. Iskovskikh

We discuss the problem of stable conjugacy of finite subgroups of Cremona groups. We show that the group $H^1(G,Pic(X))$ is a stable birational invariant and compute this group in some cases.

Algebraic Geometry · Mathematics 2016-01-29 Fedor Bogomolov , Yuri Prokhorov

We classify all finite subgroups of the plane Cremona group which have a fixed point. In other words, we determine all rational surfaces X with an action of a finite group G such that X is equivariantly birational to a surface which has a…

Algebraic Geometry · Mathematics 2016-01-05 Igor Dolgachev , Alexander Duncan

In this paper we describe conjugacy classes of finite subgroups of odd order in the group of birational automorphisms of the real projective plane.

Algebraic Geometry · Mathematics 2018-03-26 Egor Yasinsky

We classify regular generically free actions of finite groups on the projective plane, up to conjugation in the Cremona group.

Algebraic Geometry · Mathematics 2025-08-14 Ivan Cheltsov , Yuri Tschinkel , Zhijia Zhang

We obtain a sharp bound for p-elementary subgroups in the plane Cremona group over an arbitrary perfect field.

Algebraic Geometry · Mathematics 2010-06-16 Andrei Fomin

We study automorphism groups of real del Pezzo surfaces, concentrating on finite groups acting minimally on them. As a result, we obtain a vast part of classification of finite subgroups in the real plane Cremona group.

Algebraic Geometry · Mathematics 2021-12-14 Egor Yasinsky

We give the classification of the maximal infinite algebraic subgroups of the real Cremona group of the plane up to conjugacy and present a parametrisation space of each conjugacy class. Moreover, we show that the real plane Cremona group…

Algebraic Geometry · Mathematics 2016-12-02 Maria Fernanda Robayo , Susanna Zimmermann

The first group of results of this paper concerns the compressibility of finite subgroups of the Cremona groups. The second concerns the embeddability of other groups in the Cremona groups and, conversely, the Cremona groups in other…

Algebraic Geometry · Mathematics 2020-01-08 Vladimir L. Popov

This article studies the possible degenerations of plane Cremona transformations of some degree into maps of smaller degree.

Algebraic Geometry · Mathematics 2015-09-30 Jérémy Blanc , Alberto Calabri

In this note we study the finite groups whose subgroup lattices are dismantlable.

Group Theory · Mathematics 2015-02-18 Marius Tarnauceanu

We show that any infinite algebraic subgroup of the plane Cremona group over a perfect field is contained in a maximal algebraic subgroup of the plane Cremona group. We classify the maximal groups, and their subgroups of rational points, up…

Algebraic Geometry · Mathematics 2024-12-11 Julia Schneider , Susanna Zimmermann

We study linearizability properties of finite subgroups of the Cremona group ${\mathrm{Cr}}_n(k)$ in the case where $k$ is a global field, with the focus on the local-global principle. For every global field $k$ of characteristic different…

Algebraic Geometry · Mathematics 2025-08-12 Boris Kunyavskii

We explore algebraic subgroups of of the Cremona group $\mathcal C_n$ over an algebraically closed field of characteristic zero. First, we consider some class of algebraic subgroups of $\mathcal C_n$ that we call flattenable. It contains…

Algebraic Geometry · Mathematics 2012-07-17 Vladimir L. Popov

We recall some properties, unfortunately not all, of the Cremona group. We first begin by presenting a nice proof of the amalgamated product structure of the well-known subgroup of the Cremona group made up of the polynomial automorphisms…

Algebraic Geometry · Mathematics 2016-02-17 Julie Déserti
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