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faster version of reconstruct_sol

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kalmar 2017-06-23 13:38:45 +02:00
parent fd32ddbe82
commit ff4f9e7857
1 changed files with 13 additions and 10 deletions
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23
src/OrbitDecomposition.jl
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@ -114,17 +114,20 @@ function matrix_reps{T<:GroupElem}(G::Group, S::Vector{T}, AutS::Group, radius::
return mreps
end
function reconstruct_sol(mreps::Dict, Us::Vector, Ps::Vector, dims::Vector)
recP = zeros(size(Us[1],1), size(Us[1],1))
function reconstruct_sol{T<:GroupElem, S<:AbstractArray}(mreps::Dict{T, S},
Us::Vector, Ps::Vector, dims::Vector)
for g in keys(mreps)
for π in 1:endof(Us)
recP .+= dims[π] .* mreps[g]*transform(Us[π]', Ps[π])*mreps[inv(g)]
end
end
recP .*= 1/length(collect(keys(mreps)))
return recP
n = size(Us[1],1)
recP = zeros(Float64, (n,n))
Ust = transpose.(Us)
for g in keys(mreps)
A, B = mreps[g], mreps[inv(g)]
for π in 1:length(Us)
recP .+= dims[π].* (A * Us[π]*Ps[π]*Ust[π] * B)
end
end
recP .*= 1/length(keys(mreps))
return recP
end
function Cstar_repr(x::GroupRingElem, mreps)