#17149 closed enhancement (fixed)
iOA with big holes through product of OA
Reported by:  Nathann Cohen  Owned by:  

Priority:  major  Milestone:  sage6.4 
Component:  combinatorial designs  Keywords:  
Cc:  Vincent Delecroix  Merged in:  
Authors:  Nathann Cohen  Reviewers:  Vincent Delecroix 
Report Upstream:  N/A  Work issues:  
Branch:  9fd2e69 (Commits, GitHub, GitLab)  Commit:  
Dependencies:  #16922  Stopgaps: 
Description
When one multiplies a OA(k,n1)OA(k,1)
with an OA(k,n2)
, one gets an OA(k,n1.n2)OA(k,n1)
.
Will be useful for more complicated applications of the Brouwervan Rees construction later.
Change History (16)
comment:1 Changed 8 years ago by
Branch:  → u/ncohen/17149 

Status:  new → needs_review 
comment:2 Changed 8 years ago by
Commit:  → dc2b5d849b43598cf6982f020d520f4b70fb1ed6 

comment:4 Changed 8 years ago by
Commit:  dc2b5d849b43598cf6982f020d520f4b70fb1ed6 → b6e656aaff8dde5c8775e16120fc34932a7ddf6e 

Branch pushed to git repo; I updated commit sha1. This was a forced push. Last 10 new commits:
fe62ae4  trac #16559: Bugfix

12177d8  trac #16559: fix documentation

3825155  trac #16559: remove simple_wilson_construction

9bbd1f2  trac #16559: A description for the Brouwervan Rees construction

cf90906  trac #16920: Correct bibliographical references

cf378ab  trac #16920: Merged with updated #16559

0d26d10  trac #16922: find_brouwer_van_rees_with_one_truncated_column

b71013a  trac #16922: big optim. + small optim. + doctest

955b67f  trac #16922: rewrite multiple (new name int_as_sum)

b6e656a  trac #17149: iOA with big holes through product of OA

comment:5 Changed 8 years ago by
Commit:  b6e656aaff8dde5c8775e16120fc34932a7ddf6e → 15fd379dc79933c809b89f9626eed2f9b6934212 

comment:6 Changed 8 years ago by
Commit:  15fd379dc79933c809b89f9626eed2f9b6934212 → a9e7c28340317f10f64971b808e19288f533d2b6 

comment:7 Changed 8 years ago by
Commit:  a9e7c28340317f10f64971b808e19288f533d2b6 → c3f7ddfc3695771b5998eb98fdfbb140b6e993d8 

Branch pushed to git repo; I updated commit sha1. New commits:
c3f7ddf  trac #17149: OA(10,1620)

comment:8 Changed 8 years ago by
Commit:  c3f7ddfc3695771b5998eb98fdfbb140b6e993d8 → da421999df22d2a0c851630eb6c9fd33b448d0c3 

comment:9 Changed 8 years ago by
Yo Vincent ! Would you have some time for this ticket ? ^^;
Nathann
comment:10 Changed 8 years ago by
Reviewers:  → Vincent Delecroix 

Status:  needs_review → positive_review 
Hey,
Sorry for the length and empty review... the code is clean.
Vincent
comment:13 Changed 8 years ago by
Commit:  da421999df22d2a0c851630eb6c9fd33b448d0c3 → 9fd2e693a76da5a6b05c96683c81f5ffa0c2981c 

comment:14 Changed 8 years ago by
Status:  needs_work → positive_review 

Sorry about that. There was a 'x' in the middle of nowhere.
Nathann
comment:15 Changed 8 years ago by
Branch:  u/ncohen/17149 → 9fd2e693a76da5a6b05c96683c81f5ffa0c2981c 

Resolution:  → fixed 
Status:  positive_review → closed 
Note: See
TracTickets for help on using
tickets.
Branch pushed to git repo; I updated commit sha1. New commits:
trac #16559: BrouwerVan Rees version of Wilson's decomposition
trac #16559: Fixed error message for large holes and smaller example
trac #16920: New V(m,t) vectors
trac #16920: Make the V(m,t) database more compact
trac #16920: Even more MOLS
trac #16922: find_brouwer_van_rees_with_one_truncated_column
trac #16922: Merged with beta5
trac #17149: iOA with big holes through product of OA