• 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