Database of two-weight codesΒΆ
This module stores a database of two-weight codes.
![]() |
![]() |
![]() |
![]() |
![]() |
Shared by Eric Chen [ChenDB]. |
![]() |
![]() |
![]() |
![]() |
![]() |
Shared by Eric Chen [ChenDB]. |
![]() |
![]() |
![]() |
![]() |
![]() |
Found by Axel Kohnert [Koh2007] and shared by Alfred Wassermann. |
![]() |
![]() |
![]() |
![]() |
![]() |
Shared by Eric Chen [ChenDB]. |
![]() |
![]() |
![]() |
![]() |
![]() |
Shared by Eric Chen [ChenDB]. |
![]() |
![]() |
![]() |
![]() |
![]() |
Shared by Eric Chen [ChenDB]. |
![]() |
![]() |
![]() |
![]() |
![]() |
Shared by Eric Chen [ChenDB]. |
![]() |
![]() |
![]() |
![]() |
![]() |
Shared by Eric Chen [ChenDB]. |
![]() |
![]() |
![]() |
![]() |
![]() |
Shared by Eric Chen [ChenDB]. |
![]() |
![]() |
![]() |
![]() |
![]() |
Shared by Eric Chen [ChenDB]. |
![]() |
![]() |
![]() |
![]() |
![]() |
Shared by Eric Chen [ChenDB]. |
![]() |
![]() |
![]() |
![]() |
![]() |
Shared by Eric Chen [ChenDB]. |
![]() |
![]() |
![]() |
![]() |
![]() |
Found by Axel Kohnert [Koh2007] and shared by Alfred Wassermann. |
![]() |
![]() |
![]() |
![]() |
![]() |
Shared by Eric Chen [ChenDB]. |
![]() |
![]() |
![]() |
![]() |
![]() |
From [Di2000] |
![]() |
![]() |
![]() |
![]() |
![]() |
Shared by Eric Chen [ChenDB]. |
![]() |
![]() |
![]() |
![]() |
![]() |
From [Di2000] |
![]() |
![]() |
![]() |
![]() |
![]() |
From [Di2000] |
![]() |
![]() |
![]() |
![]() |
![]() |
From [Di2000] |
![]() |
![]() |
![]() |
![]() |
![]() |
From Bouyukliev and Simonis ([BS2003], Theorem 4.1) |
![]() |
![]() |
![]() |
![]() |
![]() |
Shared by Eric Chen [ChenDB]. |
![]() |
![]() |
![]() |
![]() |
![]() |
Shared by Eric Chen [ChenDB]. |
REFERENCE:
- [BS2003]
- [ChenDB]
- [Koh2007]
- [Di2000]
TESTS:
Check the data’s consistency:
sage: from sage.coding.two_weight_db import data
sage: for code in data:
....: M = code['M']
....: assert code['n'] == M.ncols()
....: assert code['k'] == M.nrows()
....: w1,w2 = [w for w,f in enumerate(LinearCode(M).weight_distribution()) if w and f]
....: assert (code['w1'], code['w2']) == (w1, w2)