Orbit method for p-Sylow subgroups of finite classical groups

Orbit method for p-Sylow subgroups of finite classical groups
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有限经典群的 p-Sylow 子群的轨道方法

DOI:
10.1016/j.jpaa.2019.02.016
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发表时间:
2017-09
影响因子:
0.8
通讯作者:
Dipper Richard
Dipper Richard
中科院分区:
数学2区
文献类型:
--
作者:
Guo Qiong;Jedlitschky Markus;Dipper Richard

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对于p是奇素数的非扭Lie型有限经典群的p-Sylow子群U,我们通过对Kirillov轨道方法的改进,构造了一个与C U的正则表示同构的单项C U-模M。我们在M的单项式基上对U-作用的某一类轨道进行了分类,证明了M中的每个轨道模都同构于一个阶梯轨道模。最后,我们将U的André-Neto超标分解为M中包含的阶梯轨道模所提供的U-特征标之和。
For the p-Sylow subgroups U of the finite classical groups of untwisted Lie type, p an odd prime, we construct a monomial C U-module M which is isomorphic to the regular representation of C U by a modification of Kirillov's orbit method called monomial linearisation. We classify a certain subclass of orbits of the U-action on the monomial basis of M consisting of so called staircase orbits and show, that every orbit module in M is isomorphic to a staircase one. Finally we decompose the André-Neto supercharacters of U into a sum of U-characters afforded by staircase orbit modules contained in M.
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