#16597: Singer difference set and fix OA_9_135
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Reporter: vdelecroix | Owner:
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-6.3
Component: combinatorial | Resolution:
designs | Merged in:
Keywords: | Reviewers:
Authors: Vincent Delecroix | Work issues:
Report Upstream: N/A | Commit:
Branch: | ec6df26f4d72c5eb939a9b02cd3ad809feacb105
u/vdelecroix/16597 | Stopgaps:
Dependencies: |
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Comment (by ncohen):
> Moreover, the set of points is not the vector space but the quotient of
`V \ {0}` by scalar multiplication. So the strategy of theorem 3.16 does
not apply directly.
That's what I said in the comment above : the 2-plane is defined by the
1-lines it contains, and the action is an action on 1-lines (which is just
a multiplication).
> Nevertheless, it would be nice to have 3.16 done somewhere! But I am not
sure that this ticket is the right place.
Given that you already implemented a specific case of it, I just thought I
would bring it up ...
Nathann
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Ticket URL: <http://trac.sagemath.org/ticket/16597#comment:9>
Sage <http://www.sagemath.org>
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