Best Known (28, 28+7, s)-Nets in Base 49
(28, 28+7, 3845653)-Net over F49 — Constructive and digital
Digital (28, 35, 3845653)-net over F49, using
- generalized (u, u+v)-construction [i] based on
- digital (1, 3, 2451)-net over F49, using
- digital (4, 7, 1921601)-net over F49, using
- s-reduction based on digital (4, 7, 5769603)-net over F49, using
- net defined by OOA [i] based on linear OOA(497, 5769603, F49, 3, 3) (dual of [(5769603, 3), 17308802, 4]-NRT-code), using
- appending kth column [i] based on linear OOA(497, 5769603, F49, 2, 3) (dual of [(5769603, 2), 11539199, 4]-NRT-code), using
- net defined by OOA [i] based on linear OOA(497, 5769603, F49, 3, 3) (dual of [(5769603, 3), 17308802, 4]-NRT-code), using
- s-reduction based on digital (4, 7, 5769603)-net over F49, using
- digital (18, 25, 1921601)-net over F49, using
- net defined by OOA [i] based on linear OOA(4925, 1921601, F49, 7, 7) (dual of [(1921601, 7), 13451182, 8]-NRT-code), using
- OOA 3-folding and stacking with additional row [i] based on linear OA(4925, 5764804, F49, 7) (dual of [5764804, 5764779, 8]-code), using
- discarding factors / shortening the dual code based on linear OA(4925, 5764805, F49, 7) (dual of [5764805, 5764780, 8]-code), using
- construction X applied to Ce(6) ⊂ Ce(5) [i] based on
- linear OA(4925, 5764801, F49, 7) (dual of [5764801, 5764776, 8]-code), using an extension Ce(6) of the primitive narrow-sense BCH-code C(I) with length 5764800 = 494−1, defining interval I = [1,6], and designed minimum distance d ≥ |I|+1 = 7 [i]
- linear OA(4921, 5764801, F49, 6) (dual of [5764801, 5764780, 7]-code), using an extension Ce(5) of the primitive narrow-sense BCH-code C(I) with length 5764800 = 494−1, defining interval I = [1,5], and designed minimum distance d ≥ |I|+1 = 6 [i]
- linear OA(490, 4, F49, 0) (dual of [4, 4, 1]-code), using
- discarding factors / shortening the dual code based on linear OA(490, s, F49, 0) (dual of [s, s, 1]-code) with arbitrarily large s, using
- construction X applied to Ce(6) ⊂ Ce(5) [i] based on
- discarding factors / shortening the dual code based on linear OA(4925, 5764805, F49, 7) (dual of [5764805, 5764780, 8]-code), using
- OOA 3-folding and stacking with additional row [i] based on linear OA(4925, 5764804, F49, 7) (dual of [5764804, 5764779, 8]-code), using
- net defined by OOA [i] based on linear OOA(4925, 1921601, F49, 7, 7) (dual of [(1921601, 7), 13451182, 8]-NRT-code), using
(28, 28+7, large)-Net over F49 — Digital
Digital (28, 35, large)-net over F49, using
- 491 times duplication [i] based on digital (27, 34, large)-net over F49, using
- t-expansion [i] based on digital (26, 34, large)-net over F49, using
(28, 28+7, large)-Net in Base 49 — Upper bound on s
There is no (28, 35, large)-net in base 49, because
- 5 times m-reduction [i] would yield (28, 30, large)-net in base 49, but