#16508: Add Commutative graded differential algebras.
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Reporter: mmarco | Owner:
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-6.4
Component: algebra | Resolution:
Keywords: sd58, sd59, | Merged in:
algebras, nonconmutative, graded | Reviewers: Travis Scrimshaw
Authors: Miguel Marco, | Work issues:
John Palmieri | Commit:
Report Upstream: N/A | b8328e6997d7b7c1ce2257b1b707e10ac2303ac2
Branch: | Stopgaps:
public/algebras/cdga-16508 |
Dependencies: #17224 |
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Comment (by tscrim):
Replying to [comment:45 jhpalmieri]:
> From my point of view, doing `B=A.CDGAlgebra(...)` and then manipulating
`B` feels like the natural thing: I view the differential graded algebra
as the central object of study here. Doing instead `d=A.differential(...)`
and then manipulating `d` would not be the obvious thing to do at all.
>
> So as long as in this situation, `B.cohomology(...)` (etc.) works, I
don't think I care about how it's implemented.
Now we can do both. I've also made the other changes I stated. There's one
last thing, there is the method `CDGAlgebra` and the class `CDGAlgebra`,
and if things are reordered in the module, you get failures from a name
conflict. So the question is do we want to rename the method and fully
spell that out to `commutative_differential_graded_algebra` and/or the
shorter `cdg_algebra`, or do we leave it as it is? I'm strongly in favor
of renaming the method to something else.
--
Ticket URL: <http://trac.sagemath.org/ticket/16508#comment:47>
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