中文

特征层与正特征单幂群轨道方法的导引性介绍

表示论 2010-11-24 v2 代数几何

摘要

本文基于作者于 2005 与 2006 年所给的讲座。我们的首要目标是介绍轨道方法,并着重于有限幂零群的特征理论。第二目标(受 G. Lusztig 近期工作启发)是阐明形如 G(Fqn)G(F_{q^n}) 的有限群的特征理论的若干非平凡方面,其中 GG 是有限域 FqF_q 上的单幂代数群。特别地,我们引入单幂群的特征层这一概念,并为表示论意义上的 L-包提供了一个玩具模型。

关键词

引用

@article{arxiv.math/0609769,
  title  = {A motivated introduction to character sheaves and the orbit method for unipotent groups in positive characteristic},
  author = {Mitya Boyarchenko and Vladimir Drinfeld},
  journal= {arXiv preprint arXiv:math/0609769},
  year   = {2010}
}

备注

77 pages, LaTeX. A few proofs are missing from this version of the paper (only the essential ideas are sketched), but otherwise it is complete. Main change compared with the first version: the term "$L$-packet" has been replaced with "$\mathbb{L}$-packet" (which is short for "Lusztig packet")