素特征下有限群的本质维数
群论
2018-03-28 v3 代数几何
摘要
给定特征 域上的有限光滑群概形 ,我们证明当 不整除 的阶时 在 处的本质维数为 ,而当整除时为 。
引用
@article{arxiv.1801.00089,
title = {Essential dimension of finite groups in prime characteristic},
author = {Zinovy Reichstein and Angelo Vistoli},
journal= {arXiv preprint arXiv:1801.00089},
year = {2018}
}
备注
7 pages. Added a new proof of a key lemma due to a referee, and made some more minor changes. Accepted for publication in Comptes Rendus Mathematique