Best Known (19, 19+6, s)-Nets in Base 9
(19, 19+6, 4385)-Net over F9 — Constructive and digital
Digital (19, 25, 4385)-net over F9, using
- (u, u+v)-construction [i] based on
- digital (0, 3, 10)-net over F9, using
- net from sequence [i] based on digital (0, 9)-sequence over F9, using
- generalized Faure sequence [i]
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F9 with g(F) = 0 and N(F) ≥ 10, using
- the rational function field F9(x) [i]
- Niederreiter sequence [i]
- net from sequence [i] based on digital (0, 9)-sequence over F9, using
- digital (16, 22, 4375)-net over F9, using
- net defined by OOA [i] based on linear OOA(922, 4375, F9, 6, 6) (dual of [(4375, 6), 26228, 7]-NRT-code), using
- OA 3-folding and stacking [i] based on linear OA(922, 13125, F9, 6) (dual of [13125, 13103, 7]-code), using
- discarding factors / shortening the dual code based on linear OA(922, 13126, F9, 6) (dual of [13126, 13104, 7]-code), using
- trace code [i] based on linear OA(8111, 6563, F81, 6) (dual of [6563, 6552, 7]-code), using
- construction X applied to Ce(5) ⊂ Ce(4) [i] based on
- linear OA(8111, 6561, F81, 6) (dual of [6561, 6550, 7]-code), using an extension Ce(5) of the primitive narrow-sense BCH-code C(I) with length 6560 = 812−1, defining interval I = [1,5], and designed minimum distance d ≥ |I|+1 = 6 [i]
- linear OA(819, 6561, F81, 5) (dual of [6561, 6552, 6]-code), using an extension Ce(4) of the primitive narrow-sense BCH-code C(I) with length 6560 = 812−1, defining interval I = [1,4], and designed minimum distance d ≥ |I|+1 = 5 [i]
- linear OA(810, 2, F81, 0) (dual of [2, 2, 1]-code), using
- discarding factors / shortening the dual code based on linear OA(810, s, F81, 0) (dual of [s, s, 1]-code) with arbitrarily large s, using
- construction X applied to Ce(5) ⊂ Ce(4) [i] based on
- trace code [i] based on linear OA(8111, 6563, F81, 6) (dual of [6563, 6552, 7]-code), using
- discarding factors / shortening the dual code based on linear OA(922, 13126, F9, 6) (dual of [13126, 13104, 7]-code), using
- OA 3-folding and stacking [i] based on linear OA(922, 13125, F9, 6) (dual of [13125, 13103, 7]-code), using
- net defined by OOA [i] based on linear OOA(922, 4375, F9, 6, 6) (dual of [(4375, 6), 26228, 7]-NRT-code), using
- digital (0, 3, 10)-net over F9, using
(19, 19+6, 6562)-Net in Base 9 — Constructive
(19, 25, 6562)-net in base 9, using
- 91 times duplication [i] based on (18, 24, 6562)-net in base 9, using
- base change [i] based on digital (10, 16, 6562)-net over F27, using
- net defined by OOA [i] based on linear OOA(2716, 6562, F27, 6, 6) (dual of [(6562, 6), 39356, 7]-NRT-code), using
- OA 3-folding and stacking [i] based on linear OA(2716, 19686, F27, 6) (dual of [19686, 19670, 7]-code), using
- construction X applied to Ce(5) ⊂ Ce(4) [i] based on
- linear OA(2716, 19683, F27, 6) (dual of [19683, 19667, 7]-code), using an extension Ce(5) of the primitive narrow-sense BCH-code C(I) with length 19682 = 273−1, defining interval I = [1,5], and designed minimum distance d ≥ |I|+1 = 6 [i]
- linear OA(2713, 19683, F27, 5) (dual of [19683, 19670, 6]-code), using an extension Ce(4) of the primitive narrow-sense BCH-code C(I) with length 19682 = 273−1, defining interval I = [1,4], and designed minimum distance d ≥ |I|+1 = 5 [i]
- linear OA(270, 3, F27, 0) (dual of [3, 3, 1]-code), using
- discarding factors / shortening the dual code based on linear OA(270, s, F27, 0) (dual of [s, s, 1]-code) with arbitrarily large s, using
- construction X applied to Ce(5) ⊂ Ce(4) [i] based on
- OA 3-folding and stacking [i] based on linear OA(2716, 19686, F27, 6) (dual of [19686, 19670, 7]-code), using
- net defined by OOA [i] based on linear OOA(2716, 6562, F27, 6, 6) (dual of [(6562, 6), 39356, 7]-NRT-code), using
- base change [i] based on digital (10, 16, 6562)-net over F27, using
(19, 19+6, 19231)-Net over F9 — Digital
Digital (19, 25, 19231)-net over F9, using
(19, 19+6, 19686)-Net in Base 9
(19, 25, 19686)-net in base 9, using
- 91 times duplication [i] based on (18, 24, 19686)-net in base 9, using
- base change [i] based on digital (10, 16, 19686)-net over F27, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OA(2716, 19686, F27, 6) (dual of [19686, 19670, 7]-code), using
- construction X applied to Ce(5) ⊂ Ce(4) [i] based on
- linear OA(2716, 19683, F27, 6) (dual of [19683, 19667, 7]-code), using an extension Ce(5) of the primitive narrow-sense BCH-code C(I) with length 19682 = 273−1, defining interval I = [1,5], and designed minimum distance d ≥ |I|+1 = 6 [i]
- linear OA(2713, 19683, F27, 5) (dual of [19683, 19670, 6]-code), using an extension Ce(4) of the primitive narrow-sense BCH-code C(I) with length 19682 = 273−1, defining interval I = [1,4], and designed minimum distance d ≥ |I|+1 = 5 [i]
- linear OA(270, 3, F27, 0) (dual of [3, 3, 1]-code), using
- discarding factors / shortening the dual code based on linear OA(270, s, F27, 0) (dual of [s, s, 1]-code) with arbitrarily large s, using
- construction X applied to Ce(5) ⊂ Ce(4) [i] based on
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OA(2716, 19686, F27, 6) (dual of [19686, 19670, 7]-code), using
- base change [i] based on digital (10, 16, 19686)-net over F27, using
(19, 19+6, large)-Net in Base 9 — Upper bound on s
There is no (19, 25, large)-net in base 9, because
- 4 times m-reduction [i] would yield (19, 21, large)-net in base 9, but