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Allow evaluation of Characters on GroupRingElems
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@ -25,6 +25,22 @@ function (chi::DirectProdCharacter)(g::DirectProductGroupElem)
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return reduce(*, 1, ((-1)^isone(g.elts[j]) for j in 1:chi.i))
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end
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for T in [PermCharacter, DirectProdCharacter]
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@eval begin
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function (chi::$T)(X::GroupRingElem)
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RG = parent(X)
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z = zero(eltype(X))
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result = z
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for i in 1:length(X.coeffs)
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if X.coeffs[i] != z
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result += chi(RG.basis[i])*X.coeffs[i]
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end
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end
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return result
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end
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end
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end
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###############################################################################
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#
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# Projections
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