Best Known (39−17, 39, s)-Nets in Base 27
(39−17, 39, 168)-Net over F27 — Constructive and digital
Digital (22, 39, 168)-net over F27, using
- generalized (u, u+v)-construction [i] based on
- digital (0, 2, 28)-net over F27, using
- digital (0, 3, 28)-net over F27, using
- net from sequence [i] based on digital (0, 27)-sequence over F27, using
- generalized Faure sequence [i]
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F27 with g(F) = 0 and N(F) ≥ 28, using
- the rational function field F27(x) [i]
- Niederreiter sequence [i]
- net from sequence [i] based on digital (0, 27)-sequence over F27, using
- digital (0, 4, 28)-net over F27, using
- net from sequence [i] based on digital (0, 27)-sequence over F27 (see above)
- digital (0, 5, 28)-net over F27, using
- net from sequence [i] based on digital (0, 27)-sequence over F27 (see above)
- digital (0, 8, 28)-net over F27, using
- net from sequence [i] based on digital (0, 27)-sequence over F27 (see above)
- digital (0, 17, 28)-net over F27, using
- net from sequence [i] based on digital (0, 27)-sequence over F27 (see above)
(39−17, 39, 232)-Net in Base 27 — Constructive
(22, 39, 232)-net in base 27, using
- (u, u+v)-construction [i] based on
- (3, 11, 82)-net in base 27, using
- 1 times m-reduction [i] based on (3, 12, 82)-net in base 27, using
- base change [i] based on digital (0, 9, 82)-net over F81, using
- net from sequence [i] based on digital (0, 81)-sequence over F81, using
- generalized Faure sequence [i]
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F81 with g(F) = 0 and N(F) ≥ 82, using
- the rational function field F81(x) [i]
- Niederreiter sequence [i]
- net from sequence [i] based on digital (0, 81)-sequence over F81, using
- base change [i] based on digital (0, 9, 82)-net over F81, using
- 1 times m-reduction [i] based on (3, 12, 82)-net in base 27, using
- (11, 28, 150)-net in base 27, using
- base change [i] based on digital (4, 21, 150)-net over F81, using
- net from sequence [i] based on digital (4, 149)-sequence over F81, using
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F81 with g(F) = 4 and N(F) ≥ 150, using
- net from sequence [i] based on digital (4, 149)-sequence over F81, using
- base change [i] based on digital (4, 21, 150)-net over F81, using
- (3, 11, 82)-net in base 27, using
(39−17, 39, 858)-Net over F27 — Digital
Digital (22, 39, 858)-net over F27, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OA(2739, 858, F27, 17) (dual of [858, 819, 18]-code), using
- 120 step Varšamov–Edel lengthening with (ri) = (3, 0, 0, 1, 9 times 0, 1, 30 times 0, 1, 75 times 0) [i] based on linear OA(2733, 732, F27, 17) (dual of [732, 699, 18]-code), using
- construction XX applied to C1 = C([727,14]), C2 = C([0,15]), C3 = C1 + C2 = C([0,14]), and C∩ = C1 ∩ C2 = C([727,15]) [i] based on
- linear OA(2731, 728, F27, 16) (dual of [728, 697, 17]-code), using the primitive BCH-code C(I) with length 728 = 272−1, defining interval I = {−1,0,…,14}, and designed minimum distance d ≥ |I|+1 = 17 [i]
- linear OA(2731, 728, F27, 16) (dual of [728, 697, 17]-code), using the primitive expurgated narrow-sense BCH-code C(I) with length 728 = 272−1, defining interval I = [0,15], and designed minimum distance d ≥ |I|+1 = 17 [i]
- linear OA(2733, 728, F27, 17) (dual of [728, 695, 18]-code), using the primitive BCH-code C(I) with length 728 = 272−1, defining interval I = {−1,0,…,15}, and designed minimum distance d ≥ |I|+1 = 18 [i]
- linear OA(2729, 728, F27, 15) (dual of [728, 699, 16]-code), using the primitive expurgated narrow-sense BCH-code C(I) with length 728 = 272−1, defining interval I = [0,14], and designed minimum distance d ≥ |I|+1 = 16 [i]
- linear OA(270, 2, F27, 0) (dual of [2, 2, 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
- linear OA(270, 2, F27, 0) (dual of [2, 2, 1]-code) (see above)
- construction XX applied to C1 = C([727,14]), C2 = C([0,15]), C3 = C1 + C2 = C([0,14]), and C∩ = C1 ∩ C2 = C([727,15]) [i] based on
- 120 step Varšamov–Edel lengthening with (ri) = (3, 0, 0, 1, 9 times 0, 1, 30 times 0, 1, 75 times 0) [i] based on linear OA(2733, 732, F27, 17) (dual of [732, 699, 18]-code), using
(39−17, 39, 911365)-Net in Base 27 — Upper bound on s
There is no (22, 39, 911366)-net in base 27, because
- 1 times m-reduction [i] would yield (22, 38, 911366)-net in base 27, but
- the generalized Rao bound for nets shows that 27m ≥ 2 465036 509789 543210 163934 443192 701564 989097 325029 640145 > 2738 [i]