#16892: Function to check if a poset containt a subposet isomorphic to another
poset
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Reporter: jmantysalo | Owner:
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-wishlist
Component: combinatorics | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/jmantysalo/function_to_check_if_a_poset_containt_a_subposet_isomorphic_to_another_poset|
f13f2385d2b79adad5dae8282162d776bb8114bd
Dependencies: 16909 | Stopgaps:
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Comment (by ncohen):
Hello !
> I don't get it. If I leave duplicates, then user will have REAL
duplicates, that have no difference at all. Function called
`isomorphic_subposets` should return posets.
I believe that it is criminal in this case to build the whole list before
returning anything. To me, if you believe that this is uncompatible with
the name of the function, I think that the function's name should be
changed, and not the other way around.
If you try to find a chain of length 20 in a chain of length 40, the code
just won't run.
Nathann
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Ticket URL: <http://trac.sagemath.org/ticket/16892#comment:25>
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