#16347: Wilson's constructions of OA with 2 truncated groups
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Reporter: ncohen | Owner:
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-6.3
Component: combinatorial | Resolution:
designs | Merged in:
Keywords: | Reviewers:
Authors: Nathann Cohen | Work issues:
Report Upstream: N/A | Commit:
Branch: public/16347 | 1d1a476fe12b2cca3e7249b092582e2a16005380
Dependencies: #16373 | Stopgaps:
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Changes (by ncohen):
* status: needs_info => needs_review
* commit: f5069f0dd30bd698489fa047b6fdabd7b8cdaf03 =>
1d1a476fe12b2cca3e7249b092582e2a16005380
* branch: u/ncohen/16347 => public/16347
Comment:
Yo !
> I did several things at `public/16347`. But I still need to understand
more the Wilson construction.
I took a picture of a drawing I made, hoping that it helps.
http://www.steinertriples.fr/ncohen/tmp/photo1.jpg
> The only construction that does not belong to `orthogonal_array` is the
product construction (which can be seen as a particular case of wilson
construction). What do you think if we move it to `orthogonal_array` and
remove the `who_asked` stuff? It would be much more readable.
I agree, I agree. I intended to do this at some point, but.. Well... When
the current patches will be reviewed, etc etc ...
Actually, tickets #16500 and #16503 create a file named
`orthogonal_arrays_recursive.py` which contain many pairs
construction/find_parameters. I intended to move the "find decompositions"
that we already have in other files there (e.g. the one implemented here,
and the `find_product_decomposition`), and indeed to rewrite this last TD
construction for TD.
It will be done. For everty patch that you review I will write another one
that does one of these things `:-P`
Nathann
----
New commits:
||[http://git.sagemath.org/sage.git/commit/?id=03c1f4515b266f11e905136d6bda9a9de126b322
03c1f45]||{{{trac #16430: Small speedup for OA(None,p^c)}}}||
||[http://git.sagemath.org/sage.git/commit/?id=8e8a9f3226e5ee5815e40156bd71286998476ff0
8e8a9f3]||{{{trac #16430: Merged with 6.3.beta4}}}||
||[http://git.sagemath.org/sage.git/commit/?id=162b83c0772a9c2a02eb3cea71028e8d14a6c0a7
162b83c]||{{{trac #16430: Many bugfixes}}}||
||[http://git.sagemath.org/sage.git/commit/?id=3e01acb6cc2f189d606f6877264f7d635a9a2036
3e01acb]||{{{trac #16430: micro improvements}}}||
||[http://git.sagemath.org/sage.git/commit/?id=81b9448a730769e28af52c3ea36faa5b8156232a
81b9448]||{{{trac #16430: put back the seealso}}}||
||[http://git.sagemath.org/sage.git/commit/?id=d3f9702840c197937865d728f596549606c811ea
d3f9702]||{{{trac #16347: merge #16430}}}||
||[http://git.sagemath.org/sage.git/commit/?id=8bcbe6f8ccf62f502a96fc8442ef2c0bd87467c5
8bcbe6f]||{{{trac #16437: fix MOLS table doctest}}}||
||[http://git.sagemath.org/sage.git/commit/?id=49169d5da071b718c8e9340abf29af34f730ab5c
49169d5]||{{{trac #16437: use is_sum_of_two_squares and fix error msg}}}||
||[http://git.sagemath.org/sage.git/commit/?id=1d1a476fe12b2cca3e7249b092582e2a16005380
1d1a476]||{{{trac #16347: optimize find_wilson_decomposition}}}||
--
Ticket URL: <http://trac.sagemath.org/ticket/16347#comment:26>
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