#16476: New difference family (25,4,1) and cleanup in bibd.py
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Reporter: vdelecroix | Owner:
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-6.3
Component: combinatorial | Resolution:
designs | Merged in:
Keywords: | Reviewers: Nathann Cohen
Authors: Vincent Delecroix | Work issues:
Report Upstream: N/A | Commit:
Branch: | 868e0b0a40d0706e599cd60c7fedb013accbfd66
u/vdelecroix/16476 | Stopgaps:
Dependencies: #16461 |
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Comment (by vdelecroix):
Replying to [comment:10 ncohen]:
> > Block of size 1 are not allowed? The Handbook says "Let K be a subset
of positive integers"...
>
> What do we do with the PBD with v=1 or v=0 and many sets of size 0,1 ?
Yup. You are right. Makes more sense to exclude them.
Are we happy with this?
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Ticket URL: <http://trac.sagemath.org/ticket/16476#comment:11>
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