Best Known (68, 68+7, s)-Nets in Base 25
(68, 68+7, large)-Net over F25 — Constructive and digital
Digital (68, 75, large)-net over F25, using
- 2 times m-reduction [i] based on digital (68, 77, large)-net over F25, using
- (u, u+v)-construction [i] based on
- digital (12, 16, 4194301)-net over F25, using
- net defined by OOA [i] based on linear OOA(2516, 4194301, F25, 4, 4) (dual of [(4194301, 4), 16777188, 5]-NRT-code), using
- OA 2-folding and stacking [i] based on linear OA(2516, 8388602, F25, 4) (dual of [8388602, 8388586, 5]-code), using
- discarding factors / shortening the dual code based on linear OA(2516, large, F25, 4) (dual of [large, large−16, 5]-code), using
- the primitive expurgated narrow-sense BCH-code C(I) with length 9765624 = 255−1, defining interval I = [0,3], and designed minimum distance d ≥ |I|+1 = 5 [i]
- discarding factors / shortening the dual code based on linear OA(2516, large, F25, 4) (dual of [large, large−16, 5]-code), using
- OA 2-folding and stacking [i] based on linear OA(2516, 8388602, F25, 4) (dual of [8388602, 8388586, 5]-code), using
- net defined by OOA [i] based on linear OOA(2516, 4194301, F25, 4, 4) (dual of [(4194301, 4), 16777188, 5]-NRT-code), using
- digital (52, 61, 4194352)-net over F25, using
- (u, u+v)-construction [i] based on
- digital (12, 16, 4194301)-net over F25 (see above)
- digital (36, 45, 2097176)-net over F25, using
- (u, u+v)-construction [i] based on
- digital (0, 4, 26)-net over F25, using
- net from sequence [i] based on digital (0, 25)-sequence over F25, using
- generalized Faure sequence [i]
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F25 with g(F) = 0 and N(F) ≥ 26, using
- the rational function field F25(x) [i]
- Niederreiter sequence [i]
- net from sequence [i] based on digital (0, 25)-sequence over F25, using
- digital (32, 41, 2097150)-net over F25, using
- net defined by OOA [i] based on linear OOA(2541, 2097150, F25, 9, 9) (dual of [(2097150, 9), 18874309, 10]-NRT-code), using
- OOA 4-folding and stacking with additional row [i] based on linear OA(2541, 8388601, F25, 9) (dual of [8388601, 8388560, 10]-code), using
- discarding factors / shortening the dual code based on linear OA(2541, large, F25, 9) (dual of [large, large−41, 10]-code), using
- the expurgated narrow-sense BCH-code C(I) with length 9765626 | 2510−1, defining interval I = [0,4], and minimum distance d ≥ |{−4,−3,…,4}|+1 = 10 (BCH-bound) [i]
- discarding factors / shortening the dual code based on linear OA(2541, large, F25, 9) (dual of [large, large−41, 10]-code), using
- OOA 4-folding and stacking with additional row [i] based on linear OA(2541, 8388601, F25, 9) (dual of [8388601, 8388560, 10]-code), using
- net defined by OOA [i] based on linear OOA(2541, 2097150, F25, 9, 9) (dual of [(2097150, 9), 18874309, 10]-NRT-code), using
- digital (0, 4, 26)-net over F25, using
- (u, u+v)-construction [i] based on
- (u, u+v)-construction [i] based on
- digital (12, 16, 4194301)-net over F25, using
- (u, u+v)-construction [i] based on
(68, 68+7, large)-Net in Base 25 — Upper bound on s
There is no (68, 75, large)-net in base 25, because
- 5 times m-reduction [i] would yield (68, 70, large)-net in base 25, but