#18311: Improve radical_basis and cartan_invariants_matrix for a finite
dimensional
algebra
-------------------------------------+-------------------------------------
Reporter: nthiery | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-6.7
Component: algebra | Resolution:
Keywords: | Merged in:
Authors: Nicolas M. Thiéry | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/nthiery/representation_theory/finite_dimensional_algebras-18311|
50867d895544ee5a449423bde74440ea8470f9ee
Dependencies: #18310, #6484 | Stopgaps:
-------------------------------------+-------------------------------------
Comment (by virmaux):
Hello,
I just took some time to read the patch.
`FiniteDimensionalAlgebrasWithBasis.multiplication_matrix` the name is not
very explicit, what about `basis_action_matrices` ? As well, wether we
want sparse matrices or not may be given as an argument?
Should we overwrite the previous method for Cartan invariant matrix from
#16659 with this new one ? Indeed the return should be the same and it's
much faster! In this case maybe we may want to wait that #16659 is
positive_reviewed to avoid merging issues.
Everything else looks good to me (modulo the remaining documentation)
I can do the aforementioned modifications.
--
Ticket URL: <http://trac.sagemath.org/ticket/18311#comment:5>
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