#10998: Categories for posets
----------------------------------------------------------------------------------+
Reporter: nthiery
| Owner: sage-combinat
Type: enhancement
| Status: needs_review
Priority: major
| Milestone: sage-4.7.1
Component: combinatorics
| Keywords: days30, sd31
Work_issues:
| Upstream: N/A
Reviewer: Franco Saliola, Christian Stump, Nicolas M. Thiéry, Florent
Hivert | Author: Frédéric Chapoton, Christian Stump, Nicolas M. Thiéry
Merged:
| Dependencies: #8288,#10651,#11289, #10938, #9065
----------------------------------------------------------------------------------+
Comment(by vbraun):
The poset elements have two attributes, `.element` and `.vertex`. Is there
a one-to-one correspondence between elements and vertices? I do think so,
but maybe there is something I'm overlooking.
If it is true, can we get rid of the superfluous element comparison in
`PosetElement.__eq__`? This causes a serious slowdown in the toric code -
its much cheaper to compare vertices than cones.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10998#comment:46>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
--
You received this message because you are subscribed to the Google Groups
"sage-trac" group.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/sage-trac?hl=en.
