钩形、双行、双列情况下Springer纤维的统一解法
A unified approach on Springer fibers in the hook, two-row and two-column cases
摘要:
我们考虑幂零自同态上的Springer纤维。固定一个约当基,并考虑与之相关的标准环面。我们处理的问题来描述的标志固定的环面属于一个给定的组件的Springer纤维。我们解决了钩子,两行和两列的情况下的问题。我们提供了两个主要的特征,这是共同的三种情况下,其中涉及的优势关系的杨图和组合算法。然后,对这三种情况,我们推导出分支及其交的拓扑性质。
英文摘要:
We consider the Springer fiber over a nilpotent endomorphism. Fix a Jordan basis and consider the standard torus relative to this. We deal with the problem to describe the flags fixed by the torus which belong to a given component of the Springer fiber. We solve the problem in the hook, two-row and two-column cases. We provide two main characterizations which are common to the three cases, and which involve dominance relations between Young diagrams and combinatorial algorithms. Then, for these three cases, we deduce topological properties of the components and their intersections.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。