Title of article
Tabloids and weighted sums of characters of certain modules of the symmetric groups
Author/Authors
Numata، نويسنده , , Yasuhide، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2008
Pages
13
From page
480
To page
492
Abstract
We consider certain modules of the symmetric groups whose basis elements are called tabloids. Some of these modules are isomorphic to subspaces of the cohomology rings of subvarieties of flag varieties as modules of the symmetric groups. We give a combinatorial description for some weighted sums of their characters, i.e., we introduce combinatorial objects called ( ρ , l ) -tableaux and rewrite weighted sums of characters as the numbers of these combinatorial objects. We also consider the meaning of these combinatorial objects, i.e., we construct a correspondence between ( ρ , l ) -tableaux and tabloids whose images are eigenvectors of the action of an element of cycle type ρ in quotient modules.
Journal title
European Journal of Combinatorics
Serial Year
2008
Journal title
European Journal of Combinatorics
Record number
1547073
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