#19018: More SRGs using Regular Symmetric Hadamard matric with Constant Diagonal
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Reporter: | Owner:
ncohen | Status: needs_review
Type: | Milestone: sage-6.9
enhancement | Resolution:
Priority: major | Merged in:
Component: graph | Reviewers:
theory | Work issues:
Keywords: | Commit:
Authors: | d66f0b651e5fe52827aeb21b4c05e4c3cf5c7625
Nathann Cohen | Stopgaps:
Report Upstream: N/A |
Branch: |
u/ncohen/19018 |
Dependencies: |
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Comment (by dimpase):
Replying to [comment:19 ncohen]:
> > huh? Here is an experiment with GAP, which is almost instant to run:
>
> Oh. Good news. Well, the best would be to rely on GAP for these
computations then, for Sage does it *very* slowly.
>
> > in your case the group will be given by 3 permutation generators, but
this will only make it even faster.
>
> If you can make it work fast in Sage, I have no objection. Here is the
code I used to generate it:
how about you add this code as an optional method to construct this graph
(and analogous code for the other graph), and # long time tests showing
that these are the graphs you claim they are.
> > How hard is to say that in a comment that you used pds such-and-such
for group such-and-such?
>
> I just do not care at all. That's why I did not. Can you acknowledge
that others can have a different view on this?
>
I can contact an author of the paper in question I know, and ask his
opinion.
You will be in for a shock then ;-)
To many people a reference of the form "this is one I fished out from
[Blah]" is too vague, not only to me.
> I will add a commit, just to end the discussion.
Could you change ` in [JK03]_.` to `in Tab.8.1 from [JK03]_.` there?
Otherwise you force the person interested to browse through most of the
paper, and it is 30+ pages long.
--
Ticket URL: <http://trac.sagemath.org/ticket/19018#comment:21>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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