Best Known (72, 72+12, s)-Nets in Base 25
(72, 72+12, 2796200)-Net over F25 — Constructive and digital
Digital (72, 84, 2796200)-net over F25, using
- 252 times duplication [i] based on digital (70, 82, 2796200)-net over F25, using
- net defined by OOA [i] based on linear OOA(2582, 2796200, F25, 14, 12) (dual of [(2796200, 14), 39146718, 13]-NRT-code), using
- OOA 3-folding and stacking with additional row [i] based on linear OOA(2582, 8388601, F25, 2, 12) (dual of [(8388601, 2), 16777120, 13]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(2582, 8388602, F25, 2, 12) (dual of [(8388602, 2), 16777122, 13]-NRT-code), using
- (u, u+v)-construction [i] based on
- linear OOA(2526, 4194301, F25, 2, 6) (dual of [(4194301, 2), 8388576, 7]-NRT-code), using
- OOA 2-folding [i] based on linear OA(2526, 8388602, F25, 6) (dual of [8388602, 8388576, 7]-code), using
- discarding factors / shortening the dual code based on linear OA(2526, large, F25, 6) (dual of [large, large−26, 7]-code), using
- the primitive expurgated narrow-sense BCH-code C(I) with length 9765624 = 255−1, defining interval I = [0,5], and designed minimum distance d ≥ |I|+1 = 7 [i]
- discarding factors / shortening the dual code based on linear OA(2526, large, F25, 6) (dual of [large, large−26, 7]-code), using
- OOA 2-folding [i] based on linear OA(2526, 8388602, F25, 6) (dual of [8388602, 8388576, 7]-code), using
- linear OOA(2556, 4194301, F25, 2, 12) (dual of [(4194301, 2), 8388546, 13]-NRT-code), using
- OOA 2-folding [i] based on linear OA(2556, 8388602, F25, 12) (dual of [8388602, 8388546, 13]-code), using
- discarding factors / shortening the dual code based on linear OA(2556, large, F25, 12) (dual of [large, large−56, 13]-code), using
- the primitive expurgated narrow-sense BCH-code C(I) with length 9765624 = 255−1, defining interval I = [0,11], and designed minimum distance d ≥ |I|+1 = 13 [i]
- discarding factors / shortening the dual code based on linear OA(2556, large, F25, 12) (dual of [large, large−56, 13]-code), using
- OOA 2-folding [i] based on linear OA(2556, 8388602, F25, 12) (dual of [8388602, 8388546, 13]-code), using
- linear OOA(2526, 4194301, F25, 2, 6) (dual of [(4194301, 2), 8388576, 7]-NRT-code), using
- (u, u+v)-construction [i] based on
- discarding factors / shortening the dual code based on linear OOA(2582, 8388602, F25, 2, 12) (dual of [(8388602, 2), 16777122, 13]-NRT-code), using
- OOA 3-folding and stacking with additional row [i] based on linear OOA(2582, 8388601, F25, 2, 12) (dual of [(8388601, 2), 16777120, 13]-NRT-code), using
- net defined by OOA [i] based on linear OOA(2582, 2796200, F25, 14, 12) (dual of [(2796200, 14), 39146718, 13]-NRT-code), using
(72, 72+12, large)-Net over F25 — Digital
Digital (72, 84, large)-net over F25, using
- t-expansion [i] based on digital (69, 84, large)-net over F25, using
- 3 times m-reduction [i] based on digital (69, 87, large)-net over F25, using
- embedding of OOA with Gilbert–VarÅ¡amov bound [i] based on linear OA(2587, large, F25, 18) (dual of [large, large−87, 19]-code), using
- 1 times code embedding in larger space [i] based on linear OA(2586, large, F25, 18) (dual of [large, large−86, 19]-code), using
- the primitive expurgated narrow-sense BCH-code C(I) with length 9765624 = 255−1, defining interval I = [0,17], and designed minimum distance d ≥ |I|+1 = 19 [i]
- 1 times code embedding in larger space [i] based on linear OA(2586, large, F25, 18) (dual of [large, large−86, 19]-code), using
- embedding of OOA with Gilbert–VarÅ¡amov bound [i] based on linear OA(2587, large, F25, 18) (dual of [large, large−87, 19]-code), using
- 3 times m-reduction [i] based on digital (69, 87, large)-net over F25, using
(72, 72+12, large)-Net in Base 25 — Upper bound on s
There is no (72, 84, large)-net in base 25, because
- 10 times m-reduction [i] would yield (72, 74, large)-net in base 25, but