Skip to content

Add decomposition helper #285

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Draft
wants to merge 1 commit into
base: master
Choose a base branch
from
Draft

Add decomposition helper #285

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
14 changes: 14 additions & 0 deletions src/GenericCharacter.jl
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -392,6 +392,20 @@
return sum//order(t)
end

function character_decomposition_multiplicity(char1::GenericCharacter, char2::GenericCharacter, char3::GenericCharacter)
check_parent(char1, char2)
check_parent(char1, char3)
t = parent(char1)
sum = 0
for class in 1:number_of_conjugacy_class_types(t)
val1 = shift_char_parameters(t, char1[class], 1)
val2 = shift_char_parameters(t, char2[class], 2)
val3 = shift_char_parameters(t, char3[class], 3)
sum += t.classlength[class] * classsum(t, class, val1 * val2 * conj(val3))
end
return shrink(sum//order(t))

Check warning on line 406 in src/GenericCharacter.jl

View check run for this annotation

Codecov / codecov/patch

src/GenericCharacter.jl#L395-L406 

Added lines #L395 - L406 were not covered by tests
end

@doc raw"""
specialize(char::GenericCharacter, var::UPoly, expr::RingElement)

Expand Down
Loading