Relations in the Cremona group over perfect fields
Algebraic Geometry
2021-04-27 v4
Abstract
For perfect fields satisfying , we construct new normal subgroups of the plane Cremona group and provide an elementary proof of its non-simplicity, following the melody of the recent proof by Blanc, Lamy and Zimmermann that the Cremona group of rank over (subfields of) the complex numbers is not simple for .
Keywords
Cite
@article{arxiv.1906.05265,
title = {Relations in the Cremona group over perfect fields},
author = {Julia Schneider},
journal= {arXiv preprint arXiv:1906.05265},
year = {2021}
}
Comments
to appear in Annales de l'Institut Fourier