#18750: Make sure indices converted into the index set of the basis for a
CombinatorialFreeModule
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Reporter: tscrim | Owner: sage-combinat
Type: defect | Status: needs_work
Priority: major | Milestone: sage-6.8
Component: combinatorics | Resolution:
Keywords: combinatorial | Merged in:
free module | Reviewers:
Authors: Travis Scrimshaw | Work issues:
Report Upstream: N/A | Commit:
Branch: | f697858783489df6b529d74fcd48a68235ef0d22
public/combinat/fix_CFM_basis-18750| Stopgaps:
Dependencies: |
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Description changed by tscrim:
Old description:
> The following is unexpected:
> {{{
> sage: F = CombinatorialFreeModule(QQ, Partitions())
> sage: F.monomial((2,1,1))
> B[(2, 1, 1)]
> }}}
> We should make sure that we always have the support of an element of the
> indexing set for a `CombinatorialFreeModule`.
New description:
The following is unexpected:
{{{
sage: F = CombinatorialFreeModule(QQ, Partitions())
sage: F.monomial((2,1,1))
B[(2, 1, 1)]
}}}
We should make sure that we always have the support of an element of the
indexing set for a `CombinatorialFreeModule`.
We also need a similar fix for `term`.
--
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Ticket URL: <http://trac.sagemath.org/ticket/18750#comment:3>
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