Actions of relative Weyl groups II
Actions of relative Weyl groups II
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相关 Weyl 组 II 的作用
DOI:
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发表时间:
2001
期刊:
影响因子:
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通讯作者:
C. Bonnafé
中科院分区:
文献类型:
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作者:
C. Bonnafé
Abstract The aim of this second part is to compute explicitly the Lusztig restriction of the characteristic function of a regular unipotent class of a finite reductive group, improving slightly a theorem of Digne, Lehrer and Michel. We follow their proof but introduce new information, namely the computation of morphisms defined in the first part when v is a regular unipotent element. This new information is obtained by studying generalizations of the variety of companion matrices which were introduced by Steinberg.