Birational geometry for the covering of a nilpotent orbit closure

Birational geometry for the covering of a nilpotent orbit closure
复制标题

DOI:
10.1007/s00029-022-00790-2
复制
发表时间:
2019-07
期刊:
Selecta Mathematica
影响因子:
--
通讯作者:
Y. Namikawa
Y. Namikawa
中科院分区:
其他
文献类型:
--
作者:
Y. Namikawa

文献摘要

被引文献

相似文献

设是复古典单李代数,O是的幂零轨道。基本群是有限的。把通用覆盖。然后扩张到一个有限覆盖。利用Kirillov-Kostant形式,正规仿射簇X成为锥辛簇。本文给出了X的一个Q-因子终止化的显式构造。
Letbe a complex classical simple Lie algebra and letObe a nilpotent orbit of. The fundamental groupis finite. Take the universal covering. Thenextends to a finite cover. By using the Kirillov–Kostant formonO, the normal affine varietyXbecomes a conical symplectic variety. In this article we give an explicit construction of aQ-factorial terminalization ofX.