#10692: new method RootSystem.root_poset
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Reporter: stumpc5 | Owner: sage-combinat
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-4.7.1
Component: combinatorics | Keywords: root system, root poset
Work_issues: | Upstream: N/A
Reviewer: | Author: Christian Stump
Merged: | Dependencies:
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Comment(by stumpc5):
Replying to [comment:4 chapoton]:
> 1) Maybe the doc could make use of Sphinx markup, to replace alpha and
beta by true greek letters.
done
> 2) Maybe one could also implement the poset of positive-but-not-simple-
roots (under what name, I do not know) ? This is another very useful
poset, at least for me.
It is! I added an optional argument `restricted` which can be used to
obtain this *restricted root poset*. If you know a better name, feel free
to change it...
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10692#comment:5>
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