#6136 closed enhancement (fixed)
(Combinatorial) Free modules: cleanup, abstraction into categories, and functorial constructions
Reported by: | nthiery | Owned by: | nthiery |
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Priority: | major | Milestone: | sage-4.3 |
Component: | algebra | Keywords: | free modules, categories, tensor, direct sum |
Cc: | sage-combinat | Merged in: | sage-4.3.alpha0 |
Authors: | Nicolas M. Thiéry | Reviewers: | Florent Hivert |
Report Upstream: | N/A | Work issues: | |
Branch: | Commit: | ||
Dependencies: | Stopgaps: |
Description (last modified by )
- Deprecates CombinatorialAlgebra?
- Abstracts some of the generic code into ModulesWithBasis?, Algebras, ...
- Implements the functorial constructions: tensor and cartesian product
- Stronger type checking, use UniqueRepresentation?
- Disabled dangerous conversions (see doc of _element_constructor), strict contains
- Naming cleanup: _term -> term, repr -> _repr_, _element_class -> element_class _combinatorial_class -> _basis_keys
- New methods: monomial, sum_of_terms, sum_of_monomials, term_or_zero_if_none, from_vector, _repr_term, _repr_option_bracket
- More interesting an_element, using heuristics
- Handle non sortable objects in repr
- Implements sage.categories.poor_man_map.PoorManMap? for maps between sets which are not modelled by parents.
- This is used to make term and sum_of_monomial into maps, with codomain and composition.
Depends on the category patches. See http://trac.sagemath.org/sage_trac/wiki/CategoriesRoadMap.
Attachments (4)
Change History (10)
comment:1 Changed 11 years ago by
- Description modified (diff)
Changed 11 years ago by
comment:2 Changed 11 years ago by
- Description modified (diff)
- Reviewers set to Florent Hivert
- Status changed from new to needs_review
Changed 11 years ago by
comment:3 Changed 11 years ago by
- Status changed from needs_review to positive_review
comment:4 Changed 11 years ago by
Apply only the last patch trac_6136-categories-freemodule-nt.2.patch
Note: it breaks some doctests which are corrected in #6137 (See http://sagetrac.org/sage_trac/wiki/CategoriesRoadMap)
Ready to go.
Cheers,
Florent
comment:5 Changed 11 years ago by
- Merged in set to sage-4.3.alpha0
- Resolution set to fixed
- Status changed from positive_review to closed
comment:6 Changed 9 years ago by
- Description modified (diff)
- Report Upstream set to N/A
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Adds TestSuite?.run call, and implements equality for PoorManMap?'s. Apply only this one.