Best Known (28, 28+10, s)-Nets in Base 49
(28, 28+10, 1152962)-Net over F49 — Constructive and digital
Digital (28, 38, 1152962)-net over F49, using
- net defined by OOA [i] based on linear OOA(4938, 1152962, F49, 10, 10) (dual of [(1152962, 10), 11529582, 11]-NRT-code), using
- OA 5-folding and stacking [i] based on linear OA(4938, 5764810, F49, 10) (dual of [5764810, 5764772, 11]-code), using
- construction X applied to Ce(9) ⊂ Ce(7) [i] based on
- linear OA(4937, 5764801, F49, 10) (dual of [5764801, 5764764, 11]-code), using an extension Ce(9) of the primitive narrow-sense BCH-code C(I) with length 5764800 = 494−1, defining interval I = [1,9], and designed minimum distance d ≥ |I|+1 = 10 [i]
- linear OA(4929, 5764801, F49, 8) (dual of [5764801, 5764772, 9]-code), using an extension Ce(7) of the primitive narrow-sense BCH-code C(I) with length 5764800 = 494−1, defining interval I = [1,7], and designed minimum distance d ≥ |I|+1 = 8 [i]
- linear OA(491, 9, F49, 1) (dual of [9, 8, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(491, s, F49, 1) (dual of [s, s−1, 2]-code) with arbitrarily large s, using
- construction X applied to Ce(9) ⊂ Ce(7) [i] based on
- OA 5-folding and stacking [i] based on linear OA(4938, 5764810, F49, 10) (dual of [5764810, 5764772, 11]-code), using
(28, 28+10, 5147608)-Net over F49 — Digital
Digital (28, 38, 5147608)-net over F49, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OA(4938, 5147608, F49, 10) (dual of [5147608, 5147570, 11]-code), using
- discarding factors / shortening the dual code based on linear OA(4938, 5764810, F49, 10) (dual of [5764810, 5764772, 11]-code), using
- construction X applied to Ce(9) ⊂ Ce(7) [i] based on
- linear OA(4937, 5764801, F49, 10) (dual of [5764801, 5764764, 11]-code), using an extension Ce(9) of the primitive narrow-sense BCH-code C(I) with length 5764800 = 494−1, defining interval I = [1,9], and designed minimum distance d ≥ |I|+1 = 10 [i]
- linear OA(4929, 5764801, F49, 8) (dual of [5764801, 5764772, 9]-code), using an extension Ce(7) of the primitive narrow-sense BCH-code C(I) with length 5764800 = 494−1, defining interval I = [1,7], and designed minimum distance d ≥ |I|+1 = 8 [i]
- linear OA(491, 9, F49, 1) (dual of [9, 8, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(491, s, F49, 1) (dual of [s, s−1, 2]-code) with arbitrarily large s, using
- construction X applied to Ce(9) ⊂ Ce(7) [i] based on
- discarding factors / shortening the dual code based on linear OA(4938, 5764810, F49, 10) (dual of [5764810, 5764772, 11]-code), using
(28, 28+10, large)-Net in Base 49 — Upper bound on s
There is no (28, 38, large)-net in base 49, because
- 8 times m-reduction [i] would yield (28, 30, large)-net in base 49, but