Best Known (61, 61+21, s)-Nets in Base 27
(61, 61+21, 53145)-Net over F27 — Constructive and digital
Digital (61, 82, 53145)-net over F27, using
- net defined by OOA [i] based on linear OOA(2782, 53145, F27, 21, 21) (dual of [(53145, 21), 1115963, 22]-NRT-code), using
- OOA 10-folding and stacking with additional row [i] based on linear OA(2782, 531451, F27, 21) (dual of [531451, 531369, 22]-code), using
- construction X applied to C([0,10]) ⊂ C([0,9]) [i] based on
- linear OA(2781, 531442, F27, 21) (dual of [531442, 531361, 22]-code), using the expurgated narrow-sense BCH-code C(I) with length 531442 | 278−1, defining interval I = [0,10], and minimum distance d ≥ |{−10,−9,…,10}|+1 = 22 (BCH-bound) [i]
- linear OA(2773, 531442, F27, 19) (dual of [531442, 531369, 20]-code), using the expurgated narrow-sense BCH-code C(I) with length 531442 | 278−1, defining interval I = [0,9], and minimum distance d ≥ |{−9,−8,…,9}|+1 = 20 (BCH-bound) [i]
- linear OA(271, 9, F27, 1) (dual of [9, 8, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(271, s, F27, 1) (dual of [s, s−1, 2]-code) with arbitrarily large s, using
- construction X applied to C([0,10]) ⊂ C([0,9]) [i] based on
- OOA 10-folding and stacking with additional row [i] based on linear OA(2782, 531451, F27, 21) (dual of [531451, 531369, 22]-code), using
(61, 61+21, 385799)-Net over F27 — Digital
Digital (61, 82, 385799)-net over F27, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OA(2782, 385799, F27, 21) (dual of [385799, 385717, 22]-code), using
- discarding factors / shortening the dual code based on linear OA(2782, 531451, F27, 21) (dual of [531451, 531369, 22]-code), using
- construction X applied to C([0,10]) ⊂ C([0,9]) [i] based on
- linear OA(2781, 531442, F27, 21) (dual of [531442, 531361, 22]-code), using the expurgated narrow-sense BCH-code C(I) with length 531442 | 278−1, defining interval I = [0,10], and minimum distance d ≥ |{−10,−9,…,10}|+1 = 22 (BCH-bound) [i]
- linear OA(2773, 531442, F27, 19) (dual of [531442, 531369, 20]-code), using the expurgated narrow-sense BCH-code C(I) with length 531442 | 278−1, defining interval I = [0,9], and minimum distance d ≥ |{−9,−8,…,9}|+1 = 20 (BCH-bound) [i]
- linear OA(271, 9, F27, 1) (dual of [9, 8, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(271, s, F27, 1) (dual of [s, s−1, 2]-code) with arbitrarily large s, using
- construction X applied to C([0,10]) ⊂ C([0,9]) [i] based on
- discarding factors / shortening the dual code based on linear OA(2782, 531451, F27, 21) (dual of [531451, 531369, 22]-code), using
(61, 61+21, large)-Net in Base 27 — Upper bound on s
There is no (61, 82, large)-net in base 27, because
- 19 times m-reduction [i] would yield (61, 63, large)-net in base 27, but