#16846: a difference_matrices module
-------------------------------------+-------------------------------------
Reporter: ncohen | Owner:
Type: enhancement | Status: needs_review
Priority: major | Milestone:
Component: combinatorial | Resolution:
designs | Merged in:
Keywords: | Reviewers:
Authors: Nathann Cohen | Work issues:
Report Upstream: N/A | Commit:
Branch: u/ncohen/16846 | 2649805f41094602cfbd2787f75028d806cf2d05
Dependencies: #16817 | Stopgaps:
-------------------------------------+-------------------------------------
Comment (by ncohen):
Yo !
> I guess that difference matrices are interesting only over Abelian
groups. Is that true?
I have no idea about that, but all examples I saw were on abelian groups
indeed.
> It would be nice to coordinate with difference families for
input/output. For example, in #16802, in the database, you can ask a
difference family with a given group and not only a fixed cardinality. It
is not perfect, but I tried to start involving the group...
Hmmmmm... So a structure like that ?
{{{
DM_constructions = {
order_of_the_group : {
signature_of_the_abelian_group: [
(k1,matrix_constructor1),
(k2,matrix_constructor2)
]
}
}
}}}
Having several difference families/matrices or OA and stuff is a hobby of
yours, you know ? To me it's just not the interesting direction `:-P`
It can be done anyway but we have to do that later, this heap of patches
is really getting dangerous. Plus Travis wrote a patch that is totally
incompatible with this one, and there are like 10 tickets in linear order
an `needs_review` at the moment `:-P`
Nathann
--
Ticket URL: <http://trac.sagemath.org/ticket/16846#comment:5>
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/d/optout.
