Let $D$ be a fixed connected component of a reductive algebraic group over an algebraically closed field. We use a variant of the Springer representation to define and study a partition of $D$ into finitely many Strata, one of which is the open set of regular elements. We show that the Strata of $D$ are indexed by a set defined purely in terms of the Weyl group and its automorphism defined by $D$.

中文翻译：

---

不连贯还原群的层

让 $D$是代数闭域上还原代数群的固定连通分量。我们使用 Springer 表示的变体来定义和研究$D$成有限多个层，其中之一是规则元素的开集。我们表明，地层$D$ 由一个纯粹根据 Weyl 群定义的集合及其自同构定义为索引 $D$.