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arXiv math/0207195math.RT
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约化包络代数的Weyl公式的类似

Analogues of Weyl's formula for reduced enveloping algebras

J. E. Humphreys

摘要:

本文研究了约化包络代数U_chi(g)在g^* 的chi元为“幂零”的临界情形下的单模.一些尺寸公式计算的Jantzen建议修改版本的Weyl的尺寸公式,根据某些反射超平面的仿射外尔群可能与Kazhdan-Lusztig细胞。

英文摘要:

In this note we study simple modules for a reduced enveloping algebra U_chi(g) in the critical case when chi element of g^* is ``nilpotent''. Some dimension formulas computed by Jantzen suggest modified versions of Weyl's dimension formula, based on certain reflecting hyperplanes for the affine Weyl group which might be associated to Kazhdan--Lusztig cells.

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。

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