#15150: Implement NCSym
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Reporter: tscrim | Owner: sage-combinat
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-5.13
Component: combinatorics | Resolution:
Keywords: | Merged in:
Authors: Travis Scrimshaw | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: #15143, #15164 | Stopgaps:
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Comment (by tscrim):
Replying to [comment:70 zabrocki]:
> I think the slice defined in `from_symmetric_function` does not preserve
the Hopf structure, but the projection preserves both product and
coproduct.
If it doesn't preserve the Hopf structure, we can't have it be a coercion
(including the '''w''' basis to the homogeneous sym funcs). Instead we
have to make them all conversions. I'll also add in the natural
conversions (ex. the '''p''' basis to the powersum sym funcs) on the next
update.
Best,[[BR]]
Travis
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Ticket URL: <http://trac.sagemath.org/ticket/15150#comment:73>
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