Best Known (56, 56+19, s)-Nets in Base 25
(56, 56+19, 43404)-Net over F25 — Constructive and digital
Digital (56, 75, 43404)-net over F25, using
- net defined by OOA [i] based on linear OOA(2575, 43404, F25, 19, 19) (dual of [(43404, 19), 824601, 20]-NRT-code), using
- OOA 9-folding and stacking with additional row [i] based on linear OA(2575, 390637, F25, 19) (dual of [390637, 390562, 20]-code), using
- discarding factors / shortening the dual code based on linear OA(2575, 390639, F25, 19) (dual of [390639, 390564, 20]-code), using
- construction X applied to Ce(18) ⊂ Ce(15) [i] based on
- linear OA(2573, 390625, F25, 19) (dual of [390625, 390552, 20]-code), using an extension Ce(18) of the primitive narrow-sense BCH-code C(I) with length 390624 = 254−1, defining interval I = [1,18], and designed minimum distance d ≥ |I|+1 = 19 [i]
- linear OA(2561, 390625, F25, 16) (dual of [390625, 390564, 17]-code), using an extension Ce(15) of the primitive narrow-sense BCH-code C(I) with length 390624 = 254−1, defining interval I = [1,15], and designed minimum distance d ≥ |I|+1 = 16 [i]
- linear OA(252, 14, F25, 2) (dual of [14, 12, 3]-code or 14-arc in PG(1,25)), using
- discarding factors / shortening the dual code based on linear OA(252, 25, F25, 2) (dual of [25, 23, 3]-code or 25-arc in PG(1,25)), using
- Reed–Solomon code RS(23,25) [i]
- discarding factors / shortening the dual code based on linear OA(252, 25, F25, 2) (dual of [25, 23, 3]-code or 25-arc in PG(1,25)), using
- construction X applied to Ce(18) ⊂ Ce(15) [i] based on
- discarding factors / shortening the dual code based on linear OA(2575, 390639, F25, 19) (dual of [390639, 390564, 20]-code), using
- OOA 9-folding and stacking with additional row [i] based on linear OA(2575, 390637, F25, 19) (dual of [390637, 390562, 20]-code), using
(56, 56+19, 363810)-Net over F25 — Digital
Digital (56, 75, 363810)-net over F25, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OA(2575, 363810, F25, 19) (dual of [363810, 363735, 20]-code), using
- discarding factors / shortening the dual code based on linear OA(2575, 390639, F25, 19) (dual of [390639, 390564, 20]-code), using
- construction X applied to Ce(18) ⊂ Ce(15) [i] based on
- linear OA(2573, 390625, F25, 19) (dual of [390625, 390552, 20]-code), using an extension Ce(18) of the primitive narrow-sense BCH-code C(I) with length 390624 = 254−1, defining interval I = [1,18], and designed minimum distance d ≥ |I|+1 = 19 [i]
- linear OA(2561, 390625, F25, 16) (dual of [390625, 390564, 17]-code), using an extension Ce(15) of the primitive narrow-sense BCH-code C(I) with length 390624 = 254−1, defining interval I = [1,15], and designed minimum distance d ≥ |I|+1 = 16 [i]
- linear OA(252, 14, F25, 2) (dual of [14, 12, 3]-code or 14-arc in PG(1,25)), using
- discarding factors / shortening the dual code based on linear OA(252, 25, F25, 2) (dual of [25, 23, 3]-code or 25-arc in PG(1,25)), using
- Reed–Solomon code RS(23,25) [i]
- discarding factors / shortening the dual code based on linear OA(252, 25, F25, 2) (dual of [25, 23, 3]-code or 25-arc in PG(1,25)), using
- construction X applied to Ce(18) ⊂ Ce(15) [i] based on
- discarding factors / shortening the dual code based on linear OA(2575, 390639, F25, 19) (dual of [390639, 390564, 20]-code), using
(56, 56+19, large)-Net in Base 25 — Upper bound on s
There is no (56, 75, large)-net in base 25, because
- 17 times m-reduction [i] would yield (56, 58, large)-net in base 25, but