Best Known (57, 57+13, s)-Nets in Base 9
(57, 57+13, 88576)-Net over F9 — Constructive and digital
Digital (57, 70, 88576)-net over F9, using
- net defined by OOA [i] based on linear OOA(970, 88576, F9, 13, 13) (dual of [(88576, 13), 1151418, 14]-NRT-code), using
- OOA 6-folding and stacking with additional row [i] based on linear OA(970, 531457, F9, 13) (dual of [531457, 531387, 14]-code), using
- discarding factors / shortening the dual code based on linear OA(970, 531462, F9, 13) (dual of [531462, 531392, 14]-code), using
- construction X applied to Ce(12) ⊂ Ce(9) [i] based on
- linear OA(967, 531441, F9, 13) (dual of [531441, 531374, 14]-code), using an extension Ce(12) of the primitive narrow-sense BCH-code C(I) with length 531440 = 96−1, defining interval I = [1,12], and designed minimum distance d ≥ |I|+1 = 13 [i]
- linear OA(949, 531441, F9, 10) (dual of [531441, 531392, 11]-code), using an extension Ce(9) of the primitive narrow-sense BCH-code C(I) with length 531440 = 96−1, defining interval I = [1,9], and designed minimum distance d ≥ |I|+1 = 10 [i]
- linear OA(93, 21, F9, 2) (dual of [21, 18, 3]-code), using
- discarding factors / shortening the dual code based on linear OA(93, 80, F9, 2) (dual of [80, 77, 3]-code), using
- the primitive expurgated narrow-sense BCH-code C(I) with length 80 = 92−1, defining interval I = [0,1], and designed minimum distance d ≥ |I|+1 = 3 [i]
- discarding factors / shortening the dual code based on linear OA(93, 80, F9, 2) (dual of [80, 77, 3]-code), using
- construction X applied to Ce(12) ⊂ Ce(9) [i] based on
- discarding factors / shortening the dual code based on linear OA(970, 531462, F9, 13) (dual of [531462, 531392, 14]-code), using
- OOA 6-folding and stacking with additional row [i] based on linear OA(970, 531457, F9, 13) (dual of [531457, 531387, 14]-code), using
(57, 57+13, 531462)-Net over F9 — Digital
Digital (57, 70, 531462)-net over F9, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OA(970, 531462, F9, 13) (dual of [531462, 531392, 14]-code), using
- construction X applied to Ce(12) ⊂ Ce(9) [i] based on
- linear OA(967, 531441, F9, 13) (dual of [531441, 531374, 14]-code), using an extension Ce(12) of the primitive narrow-sense BCH-code C(I) with length 531440 = 96−1, defining interval I = [1,12], and designed minimum distance d ≥ |I|+1 = 13 [i]
- linear OA(949, 531441, F9, 10) (dual of [531441, 531392, 11]-code), using an extension Ce(9) of the primitive narrow-sense BCH-code C(I) with length 531440 = 96−1, defining interval I = [1,9], and designed minimum distance d ≥ |I|+1 = 10 [i]
- linear OA(93, 21, F9, 2) (dual of [21, 18, 3]-code), using
- discarding factors / shortening the dual code based on linear OA(93, 80, F9, 2) (dual of [80, 77, 3]-code), using
- the primitive expurgated narrow-sense BCH-code C(I) with length 80 = 92−1, defining interval I = [0,1], and designed minimum distance d ≥ |I|+1 = 3 [i]
- discarding factors / shortening the dual code based on linear OA(93, 80, F9, 2) (dual of [80, 77, 3]-code), using
- construction X applied to Ce(12) ⊂ Ce(9) [i] based on
(57, 57+13, large)-Net in Base 9 — Upper bound on s
There is no (57, 70, large)-net in base 9, because
- 11 times m-reduction [i] would yield (57, 59, large)-net in base 9, but