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Move Generation of Laplacian to julia (for Linear Groups)
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@ -52,6 +52,26 @@ function create_product_matrix(basis::Array{Array{Float64,2},1}, limit::Int)
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return product_matrix, constraints
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end
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function Laplacian_sparse(S::Array{Array{Float64,2},1},
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basis::Array{Array{Float64,2},1})
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squares = unique(vcat([basis[1]], S, products(S,S)))
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result = spzeros(length(basis))
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result[1] = length(S)
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for s in S
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ind = find(x -> x==s, basis)
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result[ind] += -1
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end
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return result
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end
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function Laplacian(S::Array{Array{Float64,2},1},
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basis:: Array{Array{Float64,2},1})
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return full(Laplacian_sparse(S,basis))
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end
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function create_SDP_problem(matrix_constraints,
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Δ²::GroupAlgebraElement, Δ::GroupAlgebraElement)
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N = length(Δ)
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