Best Known (105, 105+18, s)-Nets in Base 3
(105, 105+18, 6563)-Net over F3 — Constructive and digital
Digital (105, 123, 6563)-net over F3, using
- 31 times duplication [i] based on digital (104, 122, 6563)-net over F3, using
- net defined by OOA [i] based on linear OOA(3122, 6563, F3, 18, 18) (dual of [(6563, 18), 118012, 19]-NRT-code), using
- OA 9-folding and stacking [i] based on linear OA(3122, 59067, F3, 18) (dual of [59067, 58945, 19]-code), using
- discarding factors / shortening the dual code based on linear OA(3122, 59070, F3, 18) (dual of [59070, 58948, 19]-code), using
- construction X applied to Ce(18) ⊂ Ce(15) [i] based on
- linear OA(3121, 59049, F3, 19) (dual of [59049, 58928, 20]-code), using an extension Ce(18) of the primitive narrow-sense BCH-code C(I) with length 59048 = 310−1, defining interval I = [1,18], and designed minimum distance d ≥ |I|+1 = 19 [i]
- linear OA(3101, 59049, F3, 16) (dual of [59049, 58948, 17]-code), using an extension Ce(15) of the primitive narrow-sense BCH-code C(I) with length 59048 = 310−1, defining interval I = [1,15], and designed minimum distance d ≥ |I|+1 = 16 [i]
- linear OA(31, 21, F3, 1) (dual of [21, 20, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(31, s, F3, 1) (dual of [s, s−1, 2]-code) with arbitrarily large s, using
- construction X applied to Ce(18) ⊂ Ce(15) [i] based on
- discarding factors / shortening the dual code based on linear OA(3122, 59070, F3, 18) (dual of [59070, 58948, 19]-code), using
- OA 9-folding and stacking [i] based on linear OA(3122, 59067, F3, 18) (dual of [59067, 58945, 19]-code), using
- net defined by OOA [i] based on linear OOA(3122, 6563, F3, 18, 18) (dual of [(6563, 18), 118012, 19]-NRT-code), using
(105, 105+18, 22659)-Net over F3 — Digital
Digital (105, 123, 22659)-net over F3, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OOA(3123, 22659, F3, 2, 18) (dual of [(22659, 2), 45195, 19]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(3123, 29536, F3, 2, 18) (dual of [(29536, 2), 58949, 19]-NRT-code), using
- OOA 2-folding [i] based on linear OA(3123, 59072, F3, 18) (dual of [59072, 58949, 19]-code), using
- 1 times code embedding in larger space [i] based on linear OA(3122, 59071, F3, 18) (dual of [59071, 58949, 19]-code), using
- construction X4 applied to Ce(18) ⊂ Ce(15) [i] based on
- linear OA(3121, 59049, F3, 19) (dual of [59049, 58928, 20]-code), using an extension Ce(18) of the primitive narrow-sense BCH-code C(I) with length 59048 = 310−1, defining interval I = [1,18], and designed minimum distance d ≥ |I|+1 = 19 [i]
- linear OA(3101, 59049, F3, 16) (dual of [59049, 58948, 17]-code), using an extension Ce(15) of the primitive narrow-sense BCH-code C(I) with length 59048 = 310−1, defining interval I = [1,15], and designed minimum distance d ≥ |I|+1 = 16 [i]
- linear OA(321, 22, F3, 21) (dual of [22, 1, 22]-code or 22-arc in PG(20,3)), using
- dual of repetition code with length 22 [i]
- linear OA(31, 22, F3, 1) (dual of [22, 21, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(31, s, F3, 1) (dual of [s, s−1, 2]-code) with arbitrarily large s, using
- construction X4 applied to Ce(18) ⊂ Ce(15) [i] based on
- 1 times code embedding in larger space [i] based on linear OA(3122, 59071, F3, 18) (dual of [59071, 58949, 19]-code), using
- OOA 2-folding [i] based on linear OA(3123, 59072, F3, 18) (dual of [59072, 58949, 19]-code), using
- discarding factors / shortening the dual code based on linear OOA(3123, 29536, F3, 2, 18) (dual of [(29536, 2), 58949, 19]-NRT-code), using
(105, 105+18, 6876668)-Net in Base 3 — Upper bound on s
There is no (105, 123, 6876669)-net in base 3, because
- the generalized Rao bound for nets shows that 3m ≥ 48519 335571 648293 058890 497983 887346 575777 853099 024069 360347 > 3123 [i]