Best Known (52, 52+7, s)-Nets in Base 4
(52, 52+7, 1398109)-Net over F4 — Constructive and digital
Digital (52, 59, 1398109)-net over F4, using
- 42 times duplication [i] based on digital (50, 57, 1398109)-net over F4, using
- net defined by OOA [i] based on linear OOA(457, 1398109, F4, 7, 7) (dual of [(1398109, 7), 9786706, 8]-NRT-code), using
- OOA 3-folding and stacking with additional row [i] based on linear OA(457, 4194328, F4, 7) (dual of [4194328, 4194271, 8]-code), using
- construction X4 applied to Ce(6) ⊂ Ce(4) [i] based on
- linear OA(456, 4194304, F4, 7) (dual of [4194304, 4194248, 8]-code), using an extension Ce(6) of the primitive narrow-sense BCH-code C(I) with length 4194303 = 411−1, defining interval I = [1,6], and designed minimum distance d ≥ |I|+1 = 7 [i]
- linear OA(434, 4194304, F4, 5) (dual of [4194304, 4194270, 6]-code), using an extension Ce(4) of the primitive narrow-sense BCH-code C(I) with length 4194303 = 411−1, defining interval I = [1,4], and designed minimum distance d ≥ |I|+1 = 5 [i]
- linear OA(423, 24, F4, 23) (dual of [24, 1, 24]-code or 24-arc in PG(22,4)), using
- dual of repetition code with length 24 [i]
- linear OA(41, 24, F4, 1) (dual of [24, 23, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(41, s, F4, 1) (dual of [s, s−1, 2]-code) with arbitrarily large s, using
- construction X4 applied to Ce(6) ⊂ Ce(4) [i] based on
- OOA 3-folding and stacking with additional row [i] based on linear OA(457, 4194328, F4, 7) (dual of [4194328, 4194271, 8]-code), using
- net defined by OOA [i] based on linear OOA(457, 1398109, F4, 7, 7) (dual of [(1398109, 7), 9786706, 8]-NRT-code), using
(52, 52+7, 4194332)-Net over F4 — Digital
Digital (52, 59, 4194332)-net over F4, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OA(459, 4194332, F4, 7) (dual of [4194332, 4194273, 8]-code), using
- construction X with Varšamov bound [i] based on
- linear OA(457, 4194328, F4, 7) (dual of [4194328, 4194271, 8]-code), using
- construction X4 applied to Ce(6) ⊂ Ce(4) [i] based on
- linear OA(456, 4194304, F4, 7) (dual of [4194304, 4194248, 8]-code), using an extension Ce(6) of the primitive narrow-sense BCH-code C(I) with length 4194303 = 411−1, defining interval I = [1,6], and designed minimum distance d ≥ |I|+1 = 7 [i]
- linear OA(434, 4194304, F4, 5) (dual of [4194304, 4194270, 6]-code), using an extension Ce(4) of the primitive narrow-sense BCH-code C(I) with length 4194303 = 411−1, defining interval I = [1,4], and designed minimum distance d ≥ |I|+1 = 5 [i]
- linear OA(423, 24, F4, 23) (dual of [24, 1, 24]-code or 24-arc in PG(22,4)), using
- dual of repetition code with length 24 [i]
- linear OA(41, 24, F4, 1) (dual of [24, 23, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(41, s, F4, 1) (dual of [s, s−1, 2]-code) with arbitrarily large s, using
- construction X4 applied to Ce(6) ⊂ Ce(4) [i] based on
- linear OA(457, 4194330, F4, 6) (dual of [4194330, 4194273, 7]-code), using Gilbert–Varšamov bound and bm = 457 > Vbs−1(k−1) = 2628 673401 280249 707499 251064 741876 [i]
- linear OA(40, 2, F4, 0) (dual of [2, 2, 1]-code), using
- discarding factors / shortening the dual code based on linear OA(40, s, F4, 0) (dual of [s, s, 1]-code) with arbitrarily large s, using
- linear OA(457, 4194328, F4, 7) (dual of [4194328, 4194271, 8]-code), using
- construction X with Varšamov bound [i] based on
(52, 52+7, large)-Net in Base 4 — Upper bound on s
There is no (52, 59, large)-net in base 4, because
- 5 times m-reduction [i] would yield (52, 54, large)-net in base 4, but