论文标题
还原群
Birational sheets in reductive groups
论文作者
论文摘要
我们定义了Birational Sheets的类似物,这是Losev为还原谎言代数而进行的建筑。对于仅连接的g半膜片,我们用lusztig-spaltenstein诱导来描述异性床单,并证明它们形成了G的分区,并且它们是通过本地研究的平稳归一化的不基质品种。
We define the group analogue of birational sheets, a construction performed by Losev for reductive Lie algebras. For G semisimple simply connected, we describe birational sheets in terms of Lusztig-Spaltenstein induction and we prove that they form a partition of G, and that they are unibranch varieties with smooth normalization by means of a local study.