Best Known (44, 44+32, s)-Nets in Base 64
(44, 44+32, 578)-Net over F64 — Constructive and digital
Digital (44, 76, 578)-net over F64, using
- (u, u+v)-construction [i] based on
- digital (0, 16, 65)-net over F64, using
- net from sequence [i] based on digital (0, 64)-sequence over F64, using
- generalized Faure sequence [i]
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F64 with g(F) = 0 and N(F) ≥ 65, using
- the rational function field F64(x) [i]
- Niederreiter sequence [i]
- net from sequence [i] based on digital (0, 64)-sequence over F64, using
- digital (28, 60, 513)-net over F64, using
- net from sequence [i] based on digital (28, 512)-sequence over F64, using
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F64 with g(F) = 28 and N(F) ≥ 513, using
- the Hermitian function field over F64 [i]
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F64 with g(F) = 28 and N(F) ≥ 513, using
- net from sequence [i] based on digital (28, 512)-sequence over F64, using
- digital (0, 16, 65)-net over F64, using
(44, 44+32, 1024)-Net in Base 64 — Constructive
(44, 76, 1024)-net in base 64, using
- 1 times m-reduction [i] based on (44, 77, 1024)-net in base 64, using
- base change [i] based on digital (33, 66, 1024)-net over F128, using
- 1281 times duplication [i] based on digital (32, 65, 1024)-net over F128, using
- net defined by OOA [i] based on linear OOA(12865, 1024, F128, 33, 33) (dual of [(1024, 33), 33727, 34]-NRT-code), using
- OOA 16-folding and stacking with additional row [i] based on linear OA(12865, 16385, F128, 33) (dual of [16385, 16320, 34]-code), using
- the expurgated narrow-sense BCH-code C(I) with length 16385 | 1284−1, defining interval I = [0,16], and minimum distance d ≥ |{−16,−15,…,16}|+1 = 34 (BCH-bound) [i]
- OOA 16-folding and stacking with additional row [i] based on linear OA(12865, 16385, F128, 33) (dual of [16385, 16320, 34]-code), using
- net defined by OOA [i] based on linear OOA(12865, 1024, F128, 33, 33) (dual of [(1024, 33), 33727, 34]-NRT-code), using
- 1281 times duplication [i] based on digital (32, 65, 1024)-net over F128, using
- base change [i] based on digital (33, 66, 1024)-net over F128, using
(44, 44+32, 5331)-Net over F64 — Digital
Digital (44, 76, 5331)-net over F64, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OA(6476, 5331, F64, 32) (dual of [5331, 5255, 33]-code), using
- 1220 step Varšamov–Edel lengthening with (ri) = (6, 0, 0, 1, 5 times 0, 1, 16 times 0, 1, 38 times 0, 1, 86 times 0, 1, 179 times 0, 1, 340 times 0, 1, 546 times 0) [i] based on linear OA(6463, 4098, F64, 32) (dual of [4098, 4035, 33]-code), using
- construction X applied to Ce(31) ⊂ Ce(30) [i] based on
- linear OA(6463, 4096, F64, 32) (dual of [4096, 4033, 33]-code), using an extension Ce(31) of the primitive narrow-sense BCH-code C(I) with length 4095 = 642−1, defining interval I = [1,31], and designed minimum distance d ≥ |I|+1 = 32 [i]
- linear OA(6461, 4096, F64, 31) (dual of [4096, 4035, 32]-code), using an extension Ce(30) of the primitive narrow-sense BCH-code C(I) with length 4095 = 642−1, defining interval I = [1,30], and designed minimum distance d ≥ |I|+1 = 31 [i]
- linear OA(640, 2, F64, 0) (dual of [2, 2, 1]-code), using
- discarding factors / shortening the dual code based on linear OA(640, s, F64, 0) (dual of [s, s, 1]-code) with arbitrarily large s, using
- construction X applied to Ce(31) ⊂ Ce(30) [i] based on
- 1220 step Varšamov–Edel lengthening with (ri) = (6, 0, 0, 1, 5 times 0, 1, 16 times 0, 1, 38 times 0, 1, 86 times 0, 1, 179 times 0, 1, 340 times 0, 1, 546 times 0) [i] based on linear OA(6463, 4098, F64, 32) (dual of [4098, 4035, 33]-code), using
(44, 44+32, large)-Net in Base 64 — Upper bound on s
There is no (44, 76, large)-net in base 64, because
- 30 times m-reduction [i] would yield (44, 46, large)-net in base 64, but