Best Known (185, 199, s)-Nets in Base 4
(185, 199, 4798952)-Net over F4 — Constructive and digital
Digital (185, 199, 4798952)-net over F4, using
- (u, u+v)-construction [i] based on
- digital (32, 39, 5468)-net over F4, using
- (u, u+v)-construction [i] based on
- digital (0, 3, 5)-net over F4, using
- net from sequence [i] based on digital (0, 4)-sequence over F4, using
- generalized Faure sequence [i]
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F4 with g(F) = 0 and N(F) ≥ 5, using
- the rational function field F4(x) [i]
- Niederreiter sequence [i]
- net from sequence [i] based on digital (0, 4)-sequence over F4, using
- digital (29, 36, 5463)-net over F4, using
- net defined by OOA [i] based on linear OOA(436, 5463, F4, 7, 7) (dual of [(5463, 7), 38205, 8]-NRT-code), using
- OOA 3-folding and stacking with additional row [i] based on linear OA(436, 16390, F4, 7) (dual of [16390, 16354, 8]-code), using
- discarding factors / shortening the dual code based on linear OA(436, 16391, F4, 7) (dual of [16391, 16355, 8]-code), using
- construction X applied to Ce(6) ⊂ Ce(5) [i] based on
- linear OA(436, 16384, F4, 7) (dual of [16384, 16348, 8]-code), using an extension Ce(6) of the primitive narrow-sense BCH-code C(I) with length 16383 = 47−1, defining interval I = [1,6], and designed minimum distance d ≥ |I|+1 = 7 [i]
- linear OA(429, 16384, F4, 6) (dual of [16384, 16355, 7]-code), using an extension Ce(5) of the primitive narrow-sense BCH-code C(I) with length 16383 = 47−1, defining interval I = [1,5], and designed minimum distance d ≥ |I|+1 = 6 [i]
- linear OA(40, 7, F4, 0) (dual of [7, 7, 1]-code), using
- discarding factors / shortening the dual code based on linear OA(40, s, F4, 0) (dual of [s, s, 1]-code) with arbitrarily large s, using
- construction X applied to Ce(6) ⊂ Ce(5) [i] based on
- discarding factors / shortening the dual code based on linear OA(436, 16391, F4, 7) (dual of [16391, 16355, 8]-code), using
- OOA 3-folding and stacking with additional row [i] based on linear OA(436, 16390, F4, 7) (dual of [16390, 16354, 8]-code), using
- net defined by OOA [i] based on linear OOA(436, 5463, F4, 7, 7) (dual of [(5463, 7), 38205, 8]-NRT-code), using
- digital (0, 3, 5)-net over F4, using
- (u, u+v)-construction [i] based on
- digital (146, 160, 4793484)-net over F4, using
- trace code for nets [i] based on digital (26, 40, 1198371)-net over F256, using
- net defined by OOA [i] based on linear OOA(25640, 1198371, F256, 14, 14) (dual of [(1198371, 14), 16777154, 15]-NRT-code), using
- OA 7-folding and stacking [i] based on linear OA(25640, 8388597, F256, 14) (dual of [8388597, 8388557, 15]-code), using
- discarding factors / shortening the dual code based on linear OA(25640, large, F256, 14) (dual of [large, large−40, 15]-code), using
- the primitive expurgated narrow-sense BCH-code C(I) with length 16777215 = 2563−1, defining interval I = [0,13], and designed minimum distance d ≥ |I|+1 = 15 [i]
- discarding factors / shortening the dual code based on linear OA(25640, large, F256, 14) (dual of [large, large−40, 15]-code), using
- OA 7-folding and stacking [i] based on linear OA(25640, 8388597, F256, 14) (dual of [8388597, 8388557, 15]-code), using
- net defined by OOA [i] based on linear OOA(25640, 1198371, F256, 14, 14) (dual of [(1198371, 14), 16777154, 15]-NRT-code), using
- trace code for nets [i] based on digital (26, 40, 1198371)-net over F256, using
- digital (32, 39, 5468)-net over F4, using
(185, 199, large)-Net over F4 — Digital
Digital (185, 199, large)-net over F4, using
- 42 times duplication [i] based on digital (183, 197, large)-net over F4, using
- t-expansion [i] based on digital (177, 197, large)-net over F4, using
- embedding of OOA with Gilbert–VarÅ¡amov bound [i] based on linear OA(4197, large, F4, 20) (dual of [large, large−197, 21]-code), using
- 17 times code embedding in larger space [i] based on linear OA(4180, large, F4, 20) (dual of [large, large−180, 21]-code), using
- the primitive narrow-sense BCH-code C(I) with length 16777215 = 412−1, defining interval I = [1,20], and designed minimum distance d ≥ |I|+1 = 21 [i]
- 17 times code embedding in larger space [i] based on linear OA(4180, large, F4, 20) (dual of [large, large−180, 21]-code), using
- embedding of OOA with Gilbert–VarÅ¡amov bound [i] based on linear OA(4197, large, F4, 20) (dual of [large, large−197, 21]-code), using
- t-expansion [i] based on digital (177, 197, large)-net over F4, using
(185, 199, large)-Net in Base 4 — Upper bound on s
There is no (185, 199, large)-net in base 4, because
- 12 times m-reduction [i] would yield (185, 187, large)-net in base 4, but