#17408: Faster transitive_reduction (=> faster Poset creation)
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Reporter: | Owner:
ncohen | Status: needs_review
Type: | Milestone: sage-6.5
enhancement | Resolution:
Priority: major | Merged in:
Component: graph | Reviewers:
theory | Work issues:
Keywords: poset | Commit:
Authors: | ce577a909e3ac2835f975cc9515b54459174e8ca
Nathann Cohen | Stopgaps:
Report Upstream: N/A |
Branch: |
u/ncohen/17408 |
Dependencies: |
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Comment (by ncohen):
> If you're finding that you're creating posets frequently, then you
should make a "lightweight" version of poset that's not carrying around
all the parent baggage.
Well, Jori wants to implement a way to enumerate all posets of a given
size, so in this case we will have to pay a high tribute to parents. But
how do you think that it should be implemented ? Jori is right that Hasse
Diagrams have a lot of features already, but that is only... Well, a Hasse
Diagram. No comparisons of elements, none of the products defined in the
posets directly, well.
What we would need as you say is a class exactly like Poset without the
parent infrastructure, but how could we implement that with the smallest
amount of copy/paste ?
Nathann
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Ticket URL: <http://trac.sagemath.org/ticket/17408#comment:12>
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