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when acting on MatElem always act on the lhs columns/rows

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kalmarek 2019-06-30 11:58:32 +02:00
parent 4c4ef195e1
commit b9dc701f17
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1 changed files with 4 additions and 4 deletions
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src/orbitdata.jl
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@ -218,7 +218,7 @@ function (p::perm)(A::MatElem)
result = similar(A)
@inbounds for i in 1:size(A, 1)
for j in 1:size(A, 2)
result[i, j] = A[p[i], p[j]] # action by permuting rows and colums/conjugation
result[p[i], p[j]] = A[i,j] # action by permuting rows and colums/conjugation
end
end
return result
@ -251,11 +251,11 @@ function (g::WreathProductElem{N})(A::MatElem) where N
@inbounds for i = 1:size(A,1)
for j = 1:size(A,2)
x = A[g.p[i], g.p[j]]
x = A[i, j]
if flips[i]*flips[j] == 1
result[i, j] = x
result[g.p[i], g.p[j]] = x
else
result[i, j] = -x
result[g.p[i], g.p[j]] = -x
end
# result[i, j] = AbstractAlgebra.mul!(x, x, flips[i]*flips[j])
# this mul! needs to be separately defined, but is 2x faster