#16659: Decomposition of finite dimensional associative algebras
-------------------------------------+-------------------------------------
Reporter: virmaux | Owner:
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-6.4
Component: algebra | Resolution:
Keywords: representation | Merged in:
theory, days64, sd67 | Reviewers: Franco Saliola
Authors: Aladin Virmaux | Work issues: merge in develop.
Report Upstream: N/A | Commit:
Branch: u/virmaux/t/16659 | 4d72964f090830c6fa01e98588395136506f9eed
Dependencies: #11111 | Stopgaps:
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Comment (by virmaux):
I reverted the radical basis. Here is a quick benchmark to show why:
Version #11111:
{{{
sage: A4 = PermutationGroup(SymmetricGroup(4).gens()).algebra(QQ,
category=Monoids().Finite())
sage: %time D25.radical()
CPU times: user 49.9 s, sys: 84 ms, total: 50 s
Wall time: 49.9 s
}}}
Version #16659
{{{
sage: %time D25.radical()
CPU times: user 572 ms, sys: 12 ms, total: 584 ms
Wall time: 590 ms
}}}
I am currently rewriting a lot of the documentation, I try to finish in
the next hours.
--
Ticket URL: <http://trac.sagemath.org/ticket/16659#comment:61>
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