#19317: A (1288,792,476,504)-strongly regular graph
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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: | f6272d39e0de839ef4e28e28d3d8fd207fe6cbae
Nathann Cohen | Stopgaps:
Report Upstream: N/A |
Branch: |
u/ncohen/19317 |
Dependencies: |
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Comment (by dimpase):
and how about this doctest?
{{{
A realizable set of parameters that Sage cannot realize (help us!)::
sage: graphs.strongly_regular_graph(1288, 495, 206,
existence=True)
True
sage: graphs.strongly_regular_graph(1288, 495, 206)
Traceback (most recent call last):
...
RuntimeError: Andries Brouwer's database claims that such a
(1288,495,206,180)-strongly
regular graph exists, but Sage does not know how to build it.
...
}}}
shouldn't you change it? (feel free to take the example on 378 vertices
from Muzychuk's paper, this is not something we will have very soon...)
--
Ticket URL: <http://trac.sagemath.org/ticket/19317#comment:8>
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