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Move Generation of Laplacian to julia (for Linear Groups)

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kalmar 2016-12-21 16:02:03 +01:00
parent 9257f57aef
commit 5b3f944cd0
1 changed files with 20 additions and 0 deletions
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property(T).jl
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@ -52,6 +52,26 @@ function create_product_matrix(basis::Array{Array{Float64,2},1}, limit::Int)
return product_matrix, constraints
end
function Laplacian_sparse(S::Array{Array{Float64,2},1},
basis::Array{Array{Float64,2},1})
squares = unique(vcat([basis[1]], S, products(S,S)))
result = spzeros(length(basis))
result[1] = length(S)
for s in S
ind = find(x -> x==s, basis)
result[ind] += -1
end
return result
end
function Laplacian(S::Array{Array{Float64,2},1},
basis:: Array{Array{Float64,2},1})
return full(Laplacian_sparse(S,basis))
end
function create_SDP_problem(matrix_constraints,
Δ²::GroupAlgebraElement, Δ::GroupAlgebraElement)
N = length(Δ)