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摘要
By a result of Mathas, the basis element T-w0 of the Hecke algebra of a finite Coxeter group acts in the canonical basis of a cell module as a permutation matrix times plus or minus a power of v. We generalize this result to the unequal parameter case. We also show that the image of T-w0 in the corresponding asymptotic Hecke algebra is given by a simple formula.
- 出版日期2015-12
- 单位MIT
