论文标题
断开还原组的地层
Strata of a disconnected reductive group
论文作者
论文摘要
让$ d $是代数闭合场上可能断开的还原$ g $的连接组件。我们将$ d $的分区定义为有限的许多阶层,每个阶层是$ g^0 $ - 连接的固定尺寸类别。在$ d = g^0 $的情况下,这将恢复已知分区。
Let $D$ be a connected component of a possibly disconnected reductive group $G$ over an algebraic closed field. We define a partition of $D$ into finitely many Strata each of which is a union of $G^0$-conjugacy classes of fixed dimension. In the case where $D=G^0$ this recovers a known partition.