Best Known (31−4, 31, s)-Nets in Base 5
(31−4, 31, 4194301)-Net over F5 — Constructive and digital
Digital (27, 31, 4194301)-net over F5, using
- net defined by OOA [i] based on linear OOA(531, 4194301, F5, 4, 4) (dual of [(4194301, 4), 16777173, 5]-NRT-code), using
- appending kth column [i] based on linear OOA(531, 4194301, F5, 3, 4) (dual of [(4194301, 3), 12582872, 5]-NRT-code), using
- OA 2-folding and stacking [i] based on linear OA(531, 8388602, F5, 4) (dual of [8388602, 8388571, 5]-code), using
- discarding factors / shortening the dual code based on linear OA(531, large, F5, 4) (dual of [large, large−31, 5]-code), using
- the primitive expurgated narrow-sense BCH-code C(I) with length 9765624 = 510−1, defining interval I = [0,3], and designed minimum distance d ≥ |I|+1 = 5 [i]
- discarding factors / shortening the dual code based on linear OA(531, large, F5, 4) (dual of [large, large−31, 5]-code), using
- OA 2-folding and stacking [i] based on linear OA(531, 8388602, F5, 4) (dual of [8388602, 8388571, 5]-code), using
- appending kth column [i] based on linear OOA(531, 4194301, F5, 3, 4) (dual of [(4194301, 3), 12582872, 5]-NRT-code), using
(31−4, 31, large)-Net over F5 — Digital
Digital (27, 31, large)-net over F5, using
- net defined by OOA [i] based on linear OOA(531, large, F5, 4, 4), using
- appending kth column [i] based on linear OOA(531, large, F5, 3, 4), using
- embedding of OOA with Gilbert–VarÅ¡amov bound [i] based on linear OA(531, large, F5, 4) (dual of [large, large−31, 5]-code), using
- the primitive expurgated narrow-sense BCH-code C(I) with length 9765624 = 510−1, defining interval I = [0,3], and designed minimum distance d ≥ |I|+1 = 5 [i]
- embedding of OOA with Gilbert–VarÅ¡amov bound [i] based on linear OA(531, large, F5, 4) (dual of [large, large−31, 5]-code), using
- appending kth column [i] based on linear OOA(531, large, F5, 3, 4), using
(31−4, 31, large)-Net in Base 5 — Upper bound on s
There is no (27, 31, large)-net in base 5, because
- 2 times m-reduction [i] would yield (27, 29, large)-net in base 5, but