#14898: Poincaré-Birkhoff-Witt and dual bases
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Reporter: deneufchatel | Owner: sage-combinat
Type: enhancement | Status: needs_review
Priority: minor | Milestone: sage-5.12
Component: combinatorics | Resolution:
Keywords: | Merged in:
Authors: Matthieu Deneufchâtel | Reviewers: Travis Scrimshaw
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Comment (by deneufchatel):
I don't agree with your implementation of the multiplication. If u and v
are two words, P_u P_v = P_{uv} iff the Lyndon factorization of uv is
(u,v); if this is not the case, you have to look at the Lyndon
factorization of uv and it is not so straightforward and this is why I did
not add it so far.
Am I right?
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Ticket URL: <http://trac.sagemath.org/ticket/14898#comment:46>
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