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group_star_multiplication -> groupring_mult
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@ -241,19 +241,23 @@ function groupring_mult(X::AbstractVector, Y::AbstractVector, pm::Array{Int,2})
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return groupring_mult!(X,Y,pm,result)
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end
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function groupring_mult{T<:Number}(X::GroupRingElem{T}, Y::GroupRingElem{T})
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parent(X) == parent(Y) || throw(ArgumentError(
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"Elements don't seem to belong to the same Group Algebra!"))
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result = algebra_multiplication(X.coeffs, Y.coeffs, X.pm)
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result = groupring_mult(X.coeffs, Y.coeffs, parent(X).pm)
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return GroupRingElem(result, parent(X))
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end
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function group_star_multiplication{T<:Number, S<:Number}(
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X::GroupRingElem{T}, Y::GroupRingElem{S})
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function groupring_mult{T<:Number, S<:Number}(X::GroupRingElem{T},
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Y::GroupRingElem{S})
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parent(X) == parent(Y) || throw("Elements don't seem to belong to the same
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Group Ring!")
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warn("Multiplying elements with different base rings!")
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return group_star_multiplication(promote(X,Y)...)
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result = groupring_mult(promote(X.coeffs,Y.coeffs)..., parent(X).pm)
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return GroupRingElem(result, parent(X))
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end
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(*)(X::GroupRingElem, Y::GroupRingElem) = group_star_multiplication(X,Y)
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(*)(X::GroupRingElem, Y::GroupRingElem) = groupring_mult(X,Y)
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###############################################################################
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#
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