#8589: New feature : Hopf algebra structure on group algebras
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Reporter: vferay | Owner: sage-combinat
Type: enhancement | Status: needs_work
Priority: major | Milestone:
Component: combinatorics | Keywords:
Author: Valentin Feray | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Changes (by vferay):
* cc: nthiery (added)
Comment:
Hello,
> Valentin: do you really need this feature right now?
It was needed in the function algebra_generators() which can be called on
a group or semi-group algebra. But I changed this function such that it
works in both cases.
I splitted the patch in 2 and keep just the part on group algebra and Hopf
algebra (and not the part turning group generators into a family).
Everything seems to work now (I have one error in the test of
hopf_algebra_with_basis.py :
"... still using old coercion framework) when the patch is applied in the
sage-combinat queue. But it seems to depend on other patches (because
import it when no other patches are applied lead to a lot of mistakes.
Nicolas, do you know which ones and what I should do.
I attach the new version of the patch
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8589#comment:11>
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