Best Known (51, 51+27, s)-Nets in Base 25
(51, 51+27, 1202)-Net over F25 — Constructive and digital
Digital (51, 78, 1202)-net over F25, using
- 252 times duplication [i] based on digital (49, 76, 1202)-net over F25, using
- net defined by OOA [i] based on linear OOA(2576, 1202, F25, 27, 27) (dual of [(1202, 27), 32378, 28]-NRT-code), using
- OOA 13-folding and stacking with additional row [i] based on linear OA(2576, 15627, F25, 27) (dual of [15627, 15551, 28]-code), using
- discarding factors / shortening the dual code based on linear OA(2576, 15628, F25, 27) (dual of [15628, 15552, 28]-code), using
- construction X applied to Ce(26) ⊂ Ce(25) [i] based on
- linear OA(2576, 15625, F25, 27) (dual of [15625, 15549, 28]-code), using an extension Ce(26) of the primitive narrow-sense BCH-code C(I) with length 15624 = 253−1, defining interval I = [1,26], and designed minimum distance d ≥ |I|+1 = 27 [i]
- linear OA(2573, 15625, F25, 26) (dual of [15625, 15552, 27]-code), using an extension Ce(25) of the primitive narrow-sense BCH-code C(I) with length 15624 = 253−1, defining interval I = [1,25], and designed minimum distance d ≥ |I|+1 = 26 [i]
- linear OA(250, 3, F25, 0) (dual of [3, 3, 1]-code), using
- discarding factors / shortening the dual code based on linear OA(250, s, F25, 0) (dual of [s, s, 1]-code) with arbitrarily large s, using
- construction X applied to Ce(26) ⊂ Ce(25) [i] based on
- discarding factors / shortening the dual code based on linear OA(2576, 15628, F25, 27) (dual of [15628, 15552, 28]-code), using
- OOA 13-folding and stacking with additional row [i] based on linear OA(2576, 15627, F25, 27) (dual of [15627, 15551, 28]-code), using
- net defined by OOA [i] based on linear OOA(2576, 1202, F25, 27, 27) (dual of [(1202, 27), 32378, 28]-NRT-code), using
(51, 51+27, 8559)-Net over F25 — Digital
Digital (51, 78, 8559)-net over F25, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OA(2578, 8559, F25, 27) (dual of [8559, 8481, 28]-code), using
- discarding factors / shortening the dual code based on linear OA(2578, 15633, F25, 27) (dual of [15633, 15555, 28]-code), using
- construction X applied to Ce(26) ⊂ Ce(23) [i] based on
- linear OA(2576, 15625, F25, 27) (dual of [15625, 15549, 28]-code), using an extension Ce(26) of the primitive narrow-sense BCH-code C(I) with length 15624 = 253−1, defining interval I = [1,26], and designed minimum distance d ≥ |I|+1 = 27 [i]
- linear OA(2570, 15625, F25, 24) (dual of [15625, 15555, 25]-code), using an extension Ce(23) of the primitive narrow-sense BCH-code C(I) with length 15624 = 253−1, defining interval I = [1,23], and designed minimum distance d ≥ |I|+1 = 24 [i]
- linear OA(252, 8, F25, 2) (dual of [8, 6, 3]-code or 8-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(26) ⊂ Ce(23) [i] based on
- discarding factors / shortening the dual code based on linear OA(2578, 15633, F25, 27) (dual of [15633, 15555, 28]-code), using
(51, 51+27, large)-Net in Base 25 — Upper bound on s
There is no (51, 78, large)-net in base 25, because
- 25 times m-reduction [i] would yield (51, 53, large)-net in base 25, but