#15536: Implement symplectic and orthogonal bases of Sym
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Reporter: tscrim | Owner: sage-combinat
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-6.10
Component: combinatorics | Resolution:
Keywords: days54, sym | Merged in:
Authors: Travis Scrimshaw | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
public/combinat/sf/sp_orth | a7ee8574e639366db30427852671b0ee1bfb0cf3
Dependencies: #17096 | Stopgaps:
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Comment (by zabrocki):
Lets look carefully:
{{{
sage: o[2].is_homogeneous()
True
sage: s(o[2]).is_homogeneous()
False
sage: o.an_element().degree_zero_coefficient()
2
sage: s(o.an_element()).degree_zero_coefficient()
-1
}}}
`degree_negation` seems to work fine but that is special for these bases
(and would not say work for the odd-symplectic basis or irreducible S_n
character basis). It would be better if on filtered bases that these
methods were done by coercion.
--
Ticket URL: <http://trac.sagemath.org/ticket/15536#comment:31>
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