Best Known (27, 37, s)-Nets in Base 4
(27, 37, 257)-Net over F4 — Constructive and digital
Digital (27, 37, 257)-net over F4, using
- base reduction for projective spaces (embedding PG(9,256) in PG(36,4)) for nets [i] based on digital (0, 10, 257)-net over F256, using
- net from sequence [i] based on digital (0, 256)-sequence over F256, using
- generalized Faure sequence [i]
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F256 with g(F) = 0 and N(F) ≥ 257, using
- the rational function field F256(x) [i]
- Niederreiter sequence [i]
- net from sequence [i] based on digital (0, 256)-sequence over F256, using
(27, 37, 387)-Net in Base 4 — Constructive
(27, 37, 387)-net in base 4, using
- 41 times duplication [i] based on (26, 36, 387)-net in base 4, using
- trace code for nets [i] based on (2, 12, 129)-net in base 64, using
- 2 times m-reduction [i] based on (2, 14, 129)-net in base 64, using
- base change [i] based on digital (0, 12, 129)-net over F128, using
- net from sequence [i] based on digital (0, 128)-sequence over F128, using
- generalized Faure sequence [i]
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F128 with g(F) = 0 and N(F) ≥ 129, using
- the rational function field F128(x) [i]
- Niederreiter sequence [i]
- net from sequence [i] based on digital (0, 128)-sequence over F128, using
- base change [i] based on digital (0, 12, 129)-net over F128, using
- 2 times m-reduction [i] based on (2, 14, 129)-net in base 64, using
- trace code for nets [i] based on (2, 12, 129)-net in base 64, using
(27, 37, 637)-Net over F4 — Digital
Digital (27, 37, 637)-net over F4, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OA(437, 637, F4, 10) (dual of [637, 600, 11]-code), using
- discarding factors / shortening the dual code based on linear OA(437, 1034, F4, 10) (dual of [1034, 997, 11]-code), using
- construction XX applied to C1 = C([333,341]), C2 = C([335,342]), C3 = C1 + C2 = C([335,341]), and C∩ = C1 ∩ C2 = C([333,342]) [i] based on
- linear OA(431, 1023, F4, 9) (dual of [1023, 992, 10]-code), using the primitive BCH-code C(I) with length 1023 = 45−1, defining interval I = {333,334,…,341}, and designed minimum distance d ≥ |I|+1 = 10 [i]
- linear OA(431, 1023, F4, 8) (dual of [1023, 992, 9]-code), using the primitive BCH-code C(I) with length 1023 = 45−1, defining interval I = {335,336,…,342}, and designed minimum distance d ≥ |I|+1 = 9 [i]
- linear OA(436, 1023, F4, 10) (dual of [1023, 987, 11]-code), using the primitive BCH-code C(I) with length 1023 = 45−1, defining interval I = {333,334,…,342}, and designed minimum distance d ≥ |I|+1 = 11 [i]
- linear OA(426, 1023, F4, 7) (dual of [1023, 997, 8]-code), using the primitive BCH-code C(I) with length 1023 = 45−1, defining interval I = {335,336,…,341}, and designed minimum distance d ≥ |I|+1 = 8 [i]
- linear OA(41, 6, F4, 1) (dual of [6, 5, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(41, s, F4, 1) (dual of [s, s−1, 2]-code) with arbitrarily large s, using
- linear OA(40, 5, F4, 0) (dual of [5, 5, 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 XX applied to C1 = C([333,341]), C2 = C([335,342]), C3 = C1 + C2 = C([335,341]), and C∩ = C1 ∩ C2 = C([333,342]) [i] based on
- discarding factors / shortening the dual code based on linear OA(437, 1034, F4, 10) (dual of [1034, 997, 11]-code), using
(27, 37, 24768)-Net in Base 4 — Upper bound on s
There is no (27, 37, 24769)-net in base 4, because
- the generalized Rao bound for nets shows that 4m ≥ 18892 472689 382181 290368 > 437 [i]