Annihilators of permutation modules
Annihilators of permutation modules
复制标题
排列模的歼灭子
DOI:
10.1093/qmath/hap020
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发表时间:
2007
期刊:
影响因子:
--
通讯作者:
Kathryn L. Nyman
中科院分区:
文献类型:
--
作者:
S. Doty;Kathryn L. Nyman
Permutation modules are fundamental in the representation theory of symmetric groups $\Sym_n$ and their corresponding Iwahori--Hecke algebras $\He = \He(\Sym_n)$. We find an explicit combinatorial basis for the annihilator of a permutation module in the "integral" case -- showing that it is a cell ideal in G.E. Murphy's cell structure of $\He$. The same result holds whenever $\He$ is semisimple, but may fail in the non-semisimple case.