论文标题
分配三个轨道的分区收缩
Divisorial contractions to codimension three orbits
论文作者
论文摘要
令$ g $为连接的代数组。我们研究$ g $ equivariant的极值宫缩，其中心是三$ g $ - 简单地连接的轨道。本着Kawakita在2001年的重要结果的精神，我们证明这些收缩是加权的爆炸。
Let $G$ be a connected algebraic group. We study $G$-equivariant extremal contractions whose centre is a codimension three $G$-simply connected orbit. In the spirit of an important result by Kawakita in 2001, we prove that those contractions are weighted blow-ups.
