Best Known (81−22, 81, s)-Nets in Base 64
(81−22, 81, 23976)-Net over F64 — Constructive and digital
Digital (59, 81, 23976)-net over F64, using
- (u, u+v)-construction [i] based on
- digital (6, 17, 145)-net over F64, using
- (u, u+v)-construction [i] based on
- digital (0, 5, 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 (1, 12, 80)-net over F64, using
- net from sequence [i] based on digital (1, 79)-sequence over F64, using
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F64 with g(F) = 1 and N(F) ≥ 80, using
- net from sequence [i] based on digital (1, 79)-sequence over F64, using
- digital (0, 5, 65)-net over F64, using
- (u, u+v)-construction [i] based on
- digital (42, 64, 23831)-net over F64, using
- net defined by OOA [i] based on linear OOA(6464, 23831, F64, 22, 22) (dual of [(23831, 22), 524218, 23]-NRT-code), using
- OA 11-folding and stacking [i] based on linear OA(6464, 262141, F64, 22) (dual of [262141, 262077, 23]-code), using
- discarding factors / shortening the dual code based on linear OA(6464, 262144, F64, 22) (dual of [262144, 262080, 23]-code), using
- an extension Ce(21) of the primitive narrow-sense BCH-code C(I) with length 262143 = 643−1, defining interval I = [1,21], and designed minimum distance d ≥ |I|+1 = 22 [i]
- discarding factors / shortening the dual code based on linear OA(6464, 262144, F64, 22) (dual of [262144, 262080, 23]-code), using
- OA 11-folding and stacking [i] based on linear OA(6464, 262141, F64, 22) (dual of [262141, 262077, 23]-code), using
- net defined by OOA [i] based on linear OOA(6464, 23831, F64, 22, 22) (dual of [(23831, 22), 524218, 23]-NRT-code), using
- digital (6, 17, 145)-net over F64, using
(81−22, 81, 190652)-Net in Base 64 — Constructive
(59, 81, 190652)-net in base 64, using
- net defined by OOA [i] based on OOA(6481, 190652, S64, 22, 22), using
- OA 11-folding and stacking [i] based on OA(6481, 2097172, S64, 22), using
- discarding factors based on OA(6481, 2097175, S64, 22), using
- discarding parts of the base [i] based on linear OA(12869, 2097175, F128, 22) (dual of [2097175, 2097106, 23]-code), using
- construction X applied to Ce(21) ⊂ Ce(15) [i] based on
- linear OA(12864, 2097152, F128, 22) (dual of [2097152, 2097088, 23]-code), using an extension Ce(21) of the primitive narrow-sense BCH-code C(I) with length 2097151 = 1283−1, defining interval I = [1,21], and designed minimum distance d ≥ |I|+1 = 22 [i]
- linear OA(12846, 2097152, F128, 16) (dual of [2097152, 2097106, 17]-code), using an extension Ce(15) of the primitive narrow-sense BCH-code C(I) with length 2097151 = 1283−1, defining interval I = [1,15], and designed minimum distance d ≥ |I|+1 = 16 [i]
- linear OA(1285, 23, F128, 5) (dual of [23, 18, 6]-code or 23-arc in PG(4,128)), using
- discarding factors / shortening the dual code based on linear OA(1285, 128, F128, 5) (dual of [128, 123, 6]-code or 128-arc in PG(4,128)), using
- Reed–Solomon code RS(123,128) [i]
- discarding factors / shortening the dual code based on linear OA(1285, 128, F128, 5) (dual of [128, 123, 6]-code or 128-arc in PG(4,128)), using
- construction X applied to Ce(21) ⊂ Ce(15) [i] based on
- discarding parts of the base [i] based on linear OA(12869, 2097175, F128, 22) (dual of [2097175, 2097106, 23]-code), using
- discarding factors based on OA(6481, 2097175, S64, 22), using
- OA 11-folding and stacking [i] based on OA(6481, 2097172, S64, 22), using
(81−22, 81, 1275997)-Net over F64 — Digital
Digital (59, 81, 1275997)-net over F64, using
(81−22, 81, large)-Net in Base 64 — Upper bound on s
There is no (59, 81, large)-net in base 64, because
- 20 times m-reduction [i] would yield (59, 61, large)-net in base 64, but