Remarks on the group of birational selfmaps of a conic fibration

arXiv (Cornell University) 2026 Preprint Open access

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Authors: Enrica Floris
Cited by: 0

Abstract

We study the group of birational selfmaps of a variety birational to a conic bundle. We prove that it admits a surjective morphism to the direct sum of an uncountable number of copies of $\mathbb Z/2\IZ$.

Fields of Study & Subjects

Algebraic Geometry and Number Theory Mathematical Dynamics and Fractals Advanced Algebra and Geometry

Publication details

Journal / source
arXiv (Cornell University)
Publication date
13 February 2026
Language
EN
Document type
Preprint