Best Known (38, 71, s)-Nets in Base 27
(38, 71, 192)-Net over F27 — Constructive and digital
Digital (38, 71, 192)-net over F27, using
- (u, u+v)-construction [i] based on
- digital (11, 27, 96)-net over F27, using
- net from sequence [i] based on digital (11, 95)-sequence over F27, using
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F27 with g(F) = 11 and N(F) ≥ 96, using
- net from sequence [i] based on digital (11, 95)-sequence over F27, using
- digital (11, 44, 96)-net over F27, using
- net from sequence [i] based on digital (11, 95)-sequence over F27 (see above)
- digital (11, 27, 96)-net over F27, using
(38, 71, 370)-Net in Base 27 — Constructive
(38, 71, 370)-net in base 27, using
- 17 times m-reduction [i] based on (38, 88, 370)-net in base 27, using
- base change [i] based on digital (16, 66, 370)-net over F81, using
- net from sequence [i] based on digital (16, 369)-sequence over F81, using
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F81 with g(F) = 16 and N(F) ≥ 370, using
- net from sequence [i] based on digital (16, 369)-sequence over F81, using
- base change [i] based on digital (16, 66, 370)-net over F81, using
(38, 71, 800)-Net over F27 — Digital
Digital (38, 71, 800)-net over F27, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OA(2771, 800, F27, 33) (dual of [800, 729, 34]-code), using
- discarding factors / shortening the dual code based on linear OA(2771, 801, F27, 33) (dual of [801, 730, 34]-code), using
- 60 step Varšamov–Edel lengthening with (ri) = (5, 0, 1, 0, 0, 0, 1, 7 times 0, 1, 15 times 0, 1, 29 times 0) [i] based on linear OA(2762, 732, F27, 33) (dual of [732, 670, 34]-code), using
- construction XX applied to C1 = C([727,30]), C2 = C([0,31]), C3 = C1 + C2 = C([0,30]), and C∩ = C1 ∩ C2 = C([727,31]) [i] based on
- linear OA(2760, 728, F27, 32) (dual of [728, 668, 33]-code), using the primitive BCH-code C(I) with length 728 = 272−1, defining interval I = {−1,0,…,30}, and designed minimum distance d ≥ |I|+1 = 33 [i]
- linear OA(2760, 728, F27, 32) (dual of [728, 668, 33]-code), using the primitive expurgated narrow-sense BCH-code C(I) with length 728 = 272−1, defining interval I = [0,31], and designed minimum distance d ≥ |I|+1 = 33 [i]
- linear OA(2762, 728, F27, 33) (dual of [728, 666, 34]-code), using the primitive BCH-code C(I) with length 728 = 272−1, defining interval I = {−1,0,…,31}, and designed minimum distance d ≥ |I|+1 = 34 [i]
- linear OA(2758, 728, F27, 31) (dual of [728, 670, 32]-code), using the primitive expurgated narrow-sense BCH-code C(I) with length 728 = 272−1, defining interval I = [0,30], and designed minimum distance d ≥ |I|+1 = 32 [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([727,30]), C2 = C([0,31]), C3 = C1 + C2 = C([0,30]), and C∩ = C1 ∩ C2 = C([727,31]) [i] based on
- 60 step Varšamov–Edel lengthening with (ri) = (5, 0, 1, 0, 0, 0, 1, 7 times 0, 1, 15 times 0, 1, 29 times 0) [i] based on linear OA(2762, 732, F27, 33) (dual of [732, 670, 34]-code), using
- discarding factors / shortening the dual code based on linear OA(2771, 801, F27, 33) (dual of [801, 730, 34]-code), using
(38, 71, 478381)-Net in Base 27 — Upper bound on s
There is no (38, 71, 478382)-net in base 27, because
- 1 times m-reduction [i] would yield (38, 70, 478382)-net in base 27, but
- the generalized Rao bound for nets shows that 27m ≥ 15684 444234 932850 930601 797453 068020 746851 045733 135639 046414 574804 390625 316663 225332 598664 145114 844065 > 2770 [i]