82.10 HeckeCentralMonomials

HeckeCentralMonomials( HW )

Returns the scalars by which the central element T_{w_0}^2 acts on irreducible representations of HW.

    gap> v := X( Cyclotomics );; v.name := "v";;
    gap> H := Hecke( CoxeterGroup( "H", 3 ), v ^ 2, v );;
    gap> HeckeCentralMonomials( H );
    [ v^0, v^60, v^24, v^36, v^20, v^20, v^40, v^40, v^30, v^30 ]

This function requires the package "chevie" (see RequirePackage).

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