kalmar/PropertyT.jl
1
0
Fork 0
mirror of https://github.com/kalmarek/PropertyT.jl.git synced 2024-11-27 01:10:28 +01:00
Code Issues Releases Wiki Activity

cut on allocating another GrupRingElement

Browse Source
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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
src/Projections.jl
View File

@ -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})