#13240: Give posets polynomials (order, characteristic, zeta, etc.)
------------------------------------------+-----------------------------
Reporter: csar | Owner: sage-combinat
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-5.13
Component: combinatorics | Resolution:
Keywords: sd40, days45 | Merged in:
Authors: Alex Csar, Kevin Dilks | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
------------------------------------------+-----------------------------
Description changed by darij:
Old description:
> Adding some of the polynomials from Stembridge's Posets package for Maple
> (see http://www.math.lsa.umich.edu/~jrs/software/posetshelp.html),
> namely:
>
> * characteristic polynomial (done)
> * zeta polynomial (done)
> * flag f-polynomial (done)
> * flag h-polynomial (done)
> * f-polynomial (done)
> * h-polynomial (done)
> * order polynomial (done)
> * chain polynomial (done)
> * W-polynomial
> * antichain polynomial
>
> apply:
> * [attachment:trac_1324O_first_step-fc.patch]
> * [attachment:trac_12340_poset_polynomials-csar.patch]
> * [attachment:trac_13240-review1-fc.patch]
New description:
Adding some of the polynomials from Stembridge's Posets package for Maple
(see http://www.math.lsa.umich.edu/~jrs/software/posetshelp.html), namely:
* characteristic polynomial (done)
* zeta polynomial (done)
* flag f-polynomial (done)
* flag h-polynomial (done)
* f-polynomial (done)
* h-polynomial (done)
* order polynomial (done)
* chain polynomial (done)
* W-polynomial
* antichain polynomial
apply:
* [attachment:trac_13240-qfold.patch]
* [attachment:trac_13240-review2-dg.patch]
--
--
Ticket URL: <http://trac.sagemath.org/ticket/13240#comment:37>
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 unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
Visit this group at http://groups.google.com/group/sage-trac.
For more options, visit https://groups.google.com/groups/opt_out.
