Best Known (239−13, 239, s)-Nets in Base 3
(239−13, 239, 5788623)-Net over F3 — Constructive and digital
Digital (226, 239, 5788623)-net over F3, using
- (u, u+v)-construction [i] based on
- digital (50, 56, 1594323)-net over F3, using
- net defined by OOA [i] based on linear OOA(356, 1594323, F3, 6, 6) (dual of [(1594323, 6), 9565882, 7]-NRT-code), using
- appending kth column [i] based on linear OOA(356, 1594323, F3, 5, 6) (dual of [(1594323, 5), 7971559, 7]-NRT-code), using
- OA 3-folding and stacking [i] based on linear OA(356, 4782969, F3, 6) (dual of [4782969, 4782913, 7]-code), using
- 1 times truncation [i] based on linear OA(357, 4782970, F3, 7) (dual of [4782970, 4782913, 8]-code), using
- the expurgated narrow-sense BCH-code C(I) with length 4782970 | 328−1, defining interval I = [0,3], and minimum distance d ≥ |{−3,−2,…,3}|+1 = 8 (BCH-bound) [i]
- 1 times truncation [i] based on linear OA(357, 4782970, F3, 7) (dual of [4782970, 4782913, 8]-code), using
- OA 3-folding and stacking [i] based on linear OA(356, 4782969, F3, 6) (dual of [4782969, 4782913, 7]-code), using
- appending kth column [i] based on linear OOA(356, 1594323, F3, 5, 6) (dual of [(1594323, 5), 7971559, 7]-NRT-code), using
- net defined by OOA [i] based on linear OOA(356, 1594323, F3, 6, 6) (dual of [(1594323, 6), 9565882, 7]-NRT-code), using
- digital (170, 183, 4194300)-net over F3, using
- trace code for nets [i] based on digital (48, 61, 1398100)-net over F27, using
- net defined by OOA [i] based on linear OOA(2761, 1398100, F27, 13, 13) (dual of [(1398100, 13), 18175239, 14]-NRT-code), using
- OOA 6-folding and stacking with additional row [i] based on linear OA(2761, 8388601, F27, 13) (dual of [8388601, 8388540, 14]-code), using
- discarding factors / shortening the dual code based on linear OA(2761, large, F27, 13) (dual of [large, large−61, 14]-code), using
- the expurgated narrow-sense BCH-code C(I) with length 14348908 | 2710−1, defining interval I = [0,6], and minimum distance d ≥ |{−6,−5,…,6}|+1 = 14 (BCH-bound) [i]
- discarding factors / shortening the dual code based on linear OA(2761, large, F27, 13) (dual of [large, large−61, 14]-code), using
- OOA 6-folding and stacking with additional row [i] based on linear OA(2761, 8388601, F27, 13) (dual of [8388601, 8388540, 14]-code), using
- net defined by OOA [i] based on linear OOA(2761, 1398100, F27, 13, 13) (dual of [(1398100, 13), 18175239, 14]-NRT-code), using
- trace code for nets [i] based on digital (48, 61, 1398100)-net over F27, using
- digital (50, 56, 1594323)-net over F3, using
(239−13, 239, large)-Net over F3 — Digital
Digital (226, 239, large)-net over F3, using
- t-expansion [i] based on digital (221, 239, large)-net over F3, using
- 2 times m-reduction [i] based on digital (221, 241, large)-net over F3, using
- embedding of OOA with Gilbert–VarÅ¡amov bound [i] based on linear OA(3241, large, F3, 20) (dual of [large, large−241, 21]-code), using
- strength reduction [i] based on linear OA(3241, large, F3, 25) (dual of [large, large−241, 26]-code), using
- the expurgated narrow-sense BCH-code C(I) with length 14348908 | 330−1, defining interval I = [0,12], and minimum distance d ≥ |{−12,−11,…,12}|+1 = 26 (BCH-bound) [i]
- strength reduction [i] based on linear OA(3241, large, F3, 25) (dual of [large, large−241, 26]-code), using
- embedding of OOA with Gilbert–VarÅ¡amov bound [i] based on linear OA(3241, large, F3, 20) (dual of [large, large−241, 21]-code), using
- 2 times m-reduction [i] based on digital (221, 241, large)-net over F3, using
(239−13, 239, large)-Net in Base 3 — Upper bound on s
There is no (226, 239, large)-net in base 3, because
- 11 times m-reduction [i] would yield (226, 228, large)-net in base 3, but