中文

轨道积分与Shalika芽的计算

表示论 2022-07-26 v1

摘要

对于非阿基米德局部域上的约化群GG,在关于(剩余)特征的一些假设下,我们给出一种计算方法,使用接近于Goresky-Kottiwitz-MacPherson的方法但采用不同语言来计算某些轨道积分。这些轨道积分使我们能够根据GKM的Hessenberg簇(其为(部分)旗簇的子簇)的某些拟有限覆盖上有理点的个数,来计算某些“极椭圆”元素处的Shalika芽。此类Shalika芽的值决定了所谓的极超尖表示(very supercuspidal representations)的Harish-Chandra局部特征展开。

关键词

引用

@article{arxiv.2207.11296,
  title  = {Computations of orbital integrals and Shalika germs},
  author = {Cheng-Chiang Tsai},
  journal= {arXiv preprint arXiv:2207.11296},
  year   = {2022}
}

备注

Most of this manuscript were written in 2014 and quite some results have been superceded. We upload this manuscript mainly for reference purpose