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PropertyT.jl
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cut on allocating another GrupRingElement

This commit is contained in:
kalmar 2017-07-17 10:18:26 +02:00
parent 143695ed24
commit d603bbd329
1 changed files with 8 additions and 6 deletions
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14
src/Projections.jl
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@ -95,15 +95,17 @@ end
#
###############################################################################
function central_projection(RG::GroupRing, char::Function, T::Type=Rational{Int})
function central_projection(RG::GroupRing, chi::Function, T::Type=Rational{Int})
result = RG(T)
result.coeffs = full(result.coeffs)
for g in RG.basis
result[g] = char(g)
end
dim = result[RG.group()]
dim = chi(RG.group())
ord = Int(order(RG.group))
return convert(T, (dim//ord)*result)
for g in RG.basis
result[g] = convert(T, (dim//ord)*chi(g))
end
return result)
end
function rankOne_projections(G::PermutationGroup, T::Type=Rational{Int})