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cut on allocating another GrupRingElement
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@ -95,15 +95,17 @@ end
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#
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###############################################################################
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function central_projection(RG::GroupRing, char::Function, T::Type=Rational{Int})
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function central_projection(RG::GroupRing, chi::Function, T::Type=Rational{Int})
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result = RG(T)
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result.coeffs = full(result.coeffs)
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for g in RG.basis
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result[g] = char(g)
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end
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dim = result[RG.group()]
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dim = chi(RG.group())
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ord = Int(order(RG.group))
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return convert(T, (dim//ord)*result)
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for g in RG.basis
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result[g] = convert(T, (dim//ord)*chi(g))
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end
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return result)
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end
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function rankOne_projections(G::PermutationGroup, T::Type=Rational{Int})
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