Best Known (131−18, 131, s)-Nets in Base 9
(131−18, 131, 932067)-Net over F9 — Constructive and digital
Digital (113, 131, 932067)-net over F9, using
- 1 times m-reduction [i] based on digital (113, 132, 932067)-net over F9, using
- net defined by OOA [i] based on linear OOA(9132, 932067, F9, 21, 19) (dual of [(932067, 21), 19573275, 20]-NRT-code), using
- OOA 3-folding and stacking with additional row [i] based on linear OOA(9132, 2796202, F9, 3, 19) (dual of [(2796202, 3), 8388474, 20]-NRT-code), using
- 1 times NRT-code embedding in larger space [i] based on linear OOA(9129, 2796201, F9, 3, 19) (dual of [(2796201, 3), 8388474, 20]-NRT-code), using
- OOA 3-folding [i] based on linear OA(9129, large, F9, 19) (dual of [large, large−129, 20]-code), using
- the expurgated narrow-sense BCH-code C(I) with length 21523361 | 916−1, defining interval I = [0,9], and minimum distance d ≥ |{−9,−8,…,9}|+1 = 20 (BCH-bound) [i]
- OOA 3-folding [i] based on linear OA(9129, large, F9, 19) (dual of [large, large−129, 20]-code), using
- 1 times NRT-code embedding in larger space [i] based on linear OOA(9129, 2796201, F9, 3, 19) (dual of [(2796201, 3), 8388474, 20]-NRT-code), using
- OOA 3-folding and stacking with additional row [i] based on linear OOA(9132, 2796202, F9, 3, 19) (dual of [(2796202, 3), 8388474, 20]-NRT-code), using
- net defined by OOA [i] based on linear OOA(9132, 932067, F9, 21, 19) (dual of [(932067, 21), 19573275, 20]-NRT-code), using
(131−18, 131, large)-Net over F9 — Digital
Digital (113, 131, large)-net over F9, using
- 92 times duplication [i] based on digital (111, 129, large)-net over F9, using
- t-expansion [i] based on digital (110, 129, large)-net over F9, using
- embedding of OOA with Gilbert–VarÅ¡amov bound [i] based on linear OA(9129, large, F9, 19) (dual of [large, large−129, 20]-code), using
- the expurgated narrow-sense BCH-code C(I) with length 21523361 | 916−1, defining interval I = [0,9], and minimum distance d ≥ |{−9,−8,…,9}|+1 = 20 (BCH-bound) [i]
- embedding of OOA with Gilbert–VarÅ¡amov bound [i] based on linear OA(9129, large, F9, 19) (dual of [large, large−129, 20]-code), using
- t-expansion [i] based on digital (110, 129, large)-net over F9, using
(131−18, 131, large)-Net in Base 9 — Upper bound on s
There is no (113, 131, large)-net in base 9, because
- 16 times m-reduction [i] would yield (113, 115, large)-net in base 9, but