Best Known (65, 65+13, s)-Nets in Base 25
(65, 65+13, 1403311)-Net over F25 — Constructive and digital
Digital (65, 78, 1403311)-net over F25, using
- (u, u+v)-construction [i] based on
- digital (11, 17, 5211)-net over F25, using
- net defined by OOA [i] based on linear OOA(2517, 5211, F25, 6, 6) (dual of [(5211, 6), 31249, 7]-NRT-code), using
- OA 3-folding and stacking [i] based on linear OA(2517, 15633, F25, 6) (dual of [15633, 15616, 7]-code), using
- construction X4 applied to Ce(5) ⊂ Ce(3) [i] based on
- linear OA(2516, 15625, F25, 6) (dual of [15625, 15609, 7]-code), using an extension Ce(5) of the primitive narrow-sense BCH-code C(I) with length 15624 = 253−1, defining interval I = [1,5], and designed minimum distance d ≥ |I|+1 = 6 [i]
- linear OA(2510, 15625, F25, 4) (dual of [15625, 15615, 5]-code), using an extension Ce(3) of the primitive narrow-sense BCH-code C(I) with length 15624 = 253−1, defining interval I = [1,3], and designed minimum distance d ≥ |I|+1 = 4 [i]
- linear OA(257, 8, F25, 7) (dual of [8, 1, 8]-code or 8-arc in PG(6,25)), using
- dual of repetition code with length 8 [i]
- linear OA(251, 8, F25, 1) (dual of [8, 7, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(251, 25, F25, 1) (dual of [25, 24, 2]-code), using
- Reed–Solomon code RS(24,25) [i]
- discarding factors / shortening the dual code based on linear OA(251, 25, F25, 1) (dual of [25, 24, 2]-code), using
- construction X4 applied to Ce(5) ⊂ Ce(3) [i] based on
- OA 3-folding and stacking [i] based on linear OA(2517, 15633, F25, 6) (dual of [15633, 15616, 7]-code), using
- net defined by OOA [i] based on linear OOA(2517, 5211, F25, 6, 6) (dual of [(5211, 6), 31249, 7]-NRT-code), using
- digital (48, 61, 1398100)-net over F25, using
- net defined by OOA [i] based on linear OOA(2561, 1398100, F25, 13, 13) (dual of [(1398100, 13), 18175239, 14]-NRT-code), using
- OOA 6-folding and stacking with additional row [i] based on linear OA(2561, 8388601, F25, 13) (dual of [8388601, 8388540, 14]-code), using
- discarding factors / shortening the dual code based on linear OA(2561, large, F25, 13) (dual of [large, large−61, 14]-code), using
- the expurgated narrow-sense BCH-code C(I) with length 9765626 | 2510−1, defining interval I = [0,6], and minimum distance d ≥ |{−6,−5,…,6}|+1 = 14 (BCH-bound) [i]
- discarding factors / shortening the dual code based on linear OA(2561, large, F25, 13) (dual of [large, large−61, 14]-code), using
- OOA 6-folding and stacking with additional row [i] based on linear OA(2561, 8388601, F25, 13) (dual of [8388601, 8388540, 14]-code), using
- net defined by OOA [i] based on linear OOA(2561, 1398100, F25, 13, 13) (dual of [(1398100, 13), 18175239, 14]-NRT-code), using
- digital (11, 17, 5211)-net over F25, using
(65, 65+13, large)-Net over F25 — Digital
Digital (65, 78, large)-net over F25, using
- 4 times m-reduction [i] based on digital (65, 82, large)-net over F25, using
- embedding of OOA with Gilbert–VarÅ¡amov bound [i] based on linear OA(2582, large, F25, 17) (dual of [large, large−82, 18]-code), using
- 1 times code embedding in larger space [i] based on linear OA(2581, large, F25, 17) (dual of [large, large−81, 18]-code), using
- the expurgated narrow-sense BCH-code C(I) with length 9765626 | 2510−1, defining interval I = [0,8], and minimum distance d ≥ |{−8,−7,…,8}|+1 = 18 (BCH-bound) [i]
- 1 times code embedding in larger space [i] based on linear OA(2581, large, F25, 17) (dual of [large, large−81, 18]-code), using
- embedding of OOA with Gilbert–VarÅ¡amov bound [i] based on linear OA(2582, large, F25, 17) (dual of [large, large−82, 18]-code), using
(65, 65+13, large)-Net in Base 25 — Upper bound on s
There is no (65, 78, large)-net in base 25, because
- 11 times m-reduction [i] would yield (65, 67, large)-net in base 25, but