#16370: OA(k,n) strongly regular graphs
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Reporter: | Owner:
ncohen | Status: needs_review
Type: | Milestone: sage-6.3
enhancement | Resolution:
Priority: major | Merged in:
Component: graph | Reviewers:
theory | Work issues:
Keywords: | Commit:
Authors: | 90a72bd39d74c24cb548e5b7dc5995c67ac386f8
Nathann Cohen | Stopgaps:
Report Upstream: N/A |
Branch: |
u/ncohen/16370 |
Dependencies: |
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Comment (by ncohen):
> Err... Well, this is actually a bug report. The parameters must always
be positive. Will look at it right now.
This is now #16433. By the way your BIBD is a projective plane, thus all
blocks intersect, thus the intersection graph is a clique, and a clique is
not strongly regular for a stupid reason that I do not like.
It is an exception in the definition.
A stupid one.
Anyway.
Nathann
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Ticket URL: <http://trac.sagemath.org/ticket/16370#comment:18>
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