Best Known (121, 121+15, s)-Nets in Base 3
(121, 121+15, 227765)-Net over F3 — Constructive and digital
Digital (121, 136, 227765)-net over F3, using
- net defined by OOA [i] based on linear OOA(3136, 227765, F3, 15, 15) (dual of [(227765, 15), 3416339, 16]-NRT-code), using
- OOA 7-folding and stacking with additional row [i] based on linear OA(3136, 1594356, F3, 15) (dual of [1594356, 1594220, 16]-code), using
- 4 times code embedding in larger space [i] based on linear OA(3132, 1594352, F3, 15) (dual of [1594352, 1594220, 16]-code), using
- construction X4 applied to C([0,7]) ⊂ C([0,6]) [i] based on
- linear OA(3131, 1594324, F3, 15) (dual of [1594324, 1594193, 16]-code), using the expurgated narrow-sense BCH-code C(I) with length 1594324 | 326−1, defining interval I = [0,7], and minimum distance d ≥ |{−7,−6,…,7}|+1 = 16 (BCH-bound) [i]
- linear OA(3105, 1594324, F3, 13) (dual of [1594324, 1594219, 14]-code), using the expurgated narrow-sense BCH-code C(I) with length 1594324 | 326−1, defining interval I = [0,6], and minimum distance d ≥ |{−6,−5,…,6}|+1 = 14 (BCH-bound) [i]
- linear OA(327, 28, F3, 27) (dual of [28, 1, 28]-code or 28-arc in PG(26,3)), using
- dual of repetition code with length 28 [i]
- linear OA(31, 28, F3, 1) (dual of [28, 27, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(31, s, F3, 1) (dual of [s, s−1, 2]-code) with arbitrarily large s, using
- construction X4 applied to C([0,7]) ⊂ C([0,6]) [i] based on
- 4 times code embedding in larger space [i] based on linear OA(3132, 1594352, F3, 15) (dual of [1594352, 1594220, 16]-code), using
- OOA 7-folding and stacking with additional row [i] based on linear OA(3136, 1594356, F3, 15) (dual of [1594356, 1594220, 16]-code), using
(121, 121+15, 562570)-Net over F3 — Digital
Digital (121, 136, 562570)-net over F3, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OOA(3136, 562570, F3, 2, 15) (dual of [(562570, 2), 1125004, 16]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(3136, 797178, F3, 2, 15) (dual of [(797178, 2), 1594220, 16]-NRT-code), using
- 2 times NRT-code embedding in larger space [i] based on linear OOA(3132, 797176, F3, 2, 15) (dual of [(797176, 2), 1594220, 16]-NRT-code), using
- OOA 2-folding [i] based on linear OA(3132, 1594352, F3, 15) (dual of [1594352, 1594220, 16]-code), using
- construction X4 applied to C([0,7]) ⊂ C([0,6]) [i] based on
- linear OA(3131, 1594324, F3, 15) (dual of [1594324, 1594193, 16]-code), using the expurgated narrow-sense BCH-code C(I) with length 1594324 | 326−1, defining interval I = [0,7], and minimum distance d ≥ |{−7,−6,…,7}|+1 = 16 (BCH-bound) [i]
- linear OA(3105, 1594324, F3, 13) (dual of [1594324, 1594219, 14]-code), using the expurgated narrow-sense BCH-code C(I) with length 1594324 | 326−1, defining interval I = [0,6], and minimum distance d ≥ |{−6,−5,…,6}|+1 = 14 (BCH-bound) [i]
- linear OA(327, 28, F3, 27) (dual of [28, 1, 28]-code or 28-arc in PG(26,3)), using
- dual of repetition code with length 28 [i]
- linear OA(31, 28, F3, 1) (dual of [28, 27, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(31, s, F3, 1) (dual of [s, s−1, 2]-code) with arbitrarily large s, using
- construction X4 applied to C([0,7]) ⊂ C([0,6]) [i] based on
- OOA 2-folding [i] based on linear OA(3132, 1594352, F3, 15) (dual of [1594352, 1594220, 16]-code), using
- 2 times NRT-code embedding in larger space [i] based on linear OOA(3132, 797176, F3, 2, 15) (dual of [(797176, 2), 1594220, 16]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(3136, 797178, F3, 2, 15) (dual of [(797178, 2), 1594220, 16]-NRT-code), using
(121, 121+15, large)-Net in Base 3 — Upper bound on s
There is no (121, 136, large)-net in base 3, because
- 13 times m-reduction [i] would yield (121, 123, large)-net in base 3, but