#15245: Pfaffian of a skew-symmetric matrix
-------------------------------------------------+-------------------------
Reporter: darij | Owner:
Type: enhancement | Status:
Priority: major | positive_review
Component: combinatorics | Milestone: sage-5.13
Keywords: matrix, sage-combinat, | Resolution:
pfaffian | Merged in:
Authors: Darij Grinberg | Reviewers: Travis
Report Upstream: N/A | Scrimshaw
Branch: | Work issues:
Dependencies: #14117 | Commit:
| Stopgaps:
-------------------------------------------------+-------------------------
Comment (by darij):
Skew symmetric is NOT the same as alternating in ZZ/(6 ZZ); think of a 3
on the main diagonal. Just having 1 + 1 != 0 is not enough. Infinite
characteristic in the sense of "ZZ embeds into the ring" is not enough
since we can have things like ZZ[X] / (2X).
--
Ticket URL: <http://trac.sagemath.org/ticket/15245#comment:23>
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.
