#14732: Realize a poset as a graph
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Reporter: chrisjamesberg | Owner: sage-combinat
Type: enhancement | Status: positive_review
Priority: major | Milestone: sage-5.11
Component: combinatorics | Resolution:
Keywords: FindStatDays01 | Work issues:
Report Upstream: N/A | Reviewers: Travis Scrimshaw, Christian
Stump
Authors: Chris Berg | Merged in:
Dependencies: | Stopgaps:
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Comment (by nthiery):
Grumble, my comment never made it through. Well, it's kind of late now,
but since I had typed it in ....
Replying to [comment:5 VivianePons]:
> actually there is a strong use case: in FindStat we need the method to
consider the map between posets and graphs. When people look for a stat on
posets, this maps allows us to also look on graphs.
>
> From a pure Sage point of vue, I think it is actually a nice shortcut:
not everyone thinks of transforming the poset into a Hasse diagram.
I would find more natural to have hasse_diagram be a combinatorial map
from posets to directed graphs (possibly with an alias to_digraph, or just
digraph for consistency with crystals). And to have another combinatorial
map from directed graphs to graphs. The composition of the two maps is not
super canonical.
Have fun at Findstat Days 1!
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14732#comment:10>
Sage <http://www.sagemath.org>
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