Comparison of \(a\)-functions (Q1266457)
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scientific article; zbMATH DE number 1200003
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Comparison of \(a\)-functions |
scientific article; zbMATH DE number 1200003 |
Statements
Comparison of \(a\)-functions (English)
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20 January 1999
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Let \(W\) denote a finite, simply laced Weyl group, or the affine Weyl group \(E_9=\widehat E_8\). The authors show agreement of Lusztig's \(a\)-function with the \(a\)-function previously given by \textit{C. K. Fan} [J. Am. Math. Soc. 10, No. 1, 139-167 (1997; Zbl 0861.20042)].
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simply laced Weyl groups
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affine Weyl groups
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Lusztig's \(a\)-function
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