#8678: Improvements for morphisms of ModulesWithBasis
-------------------------------------+-------------------------------------
Reporter: nthiery | Owner: nthiery
Type: defect | Status: needs_work
Priority: major | Milestone: sage-6.3
Component: categories | Resolution:
Keywords: homsets, module | Merged in:
morphisms | Reviewers:
Authors: Nicolas M. Thiéry | Work issues: failing test with
Report Upstream: N/A | steenrod and quiver algebras
Branch: | Commit:
u/nthiery/categories/module- | aa7fe1df3be82feb1154d27761912fc179653224
morphisms-8678 | Stopgaps:
Dependencies: #10668 |
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Changes (by nthiery):
* work_issues: => failing test with steenrod and quiver algebras
Old description:
> This ticket implements:
> - inverses for morphisms of finite dimensional vector spaces
> - tensor products of morphisms
> and improves:
> - triangular morphisms over base rings
New description:
This ticket implements:
- inverses for morphisms of finite dimensional vector spaces
- tensor products of morphisms
and improves:
- triangular morphisms over base rings
Declares CombinatorialFreeModule indexed by a finite set as being finite
dimensional.
--
Comment:
Now mosts tests pass. The remaining failing ones are because of some
finite dimensional algebras over a finite field become finite, hence
finite semigroups. And currently finite semigroups are automatically made
into enumerated sets using their generators; however those generators are
not always available.
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Ticket URL: <http://trac.sagemath.org/ticket/8678#comment:20>
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