MinT - Best Known (233−21, 233, s)-Nets in Base 3

Best Known (233−21, 233, s)-Nets in Base 3

(233−21, 233, 838892)-Net over F₃ — Constructive and digital

Digital (212, 233, 838892)-net over F₃, using

3¹ times duplication [i] based on digital (211, 232, 838892)-net over F₃, using
- (u,Â u+v)-construction [i] based on
  1. digital (12, 22, 32)-net over F₃, using
    - trace code for nets [i] based on digital (1, 11, 16)-net over F₉, using
      - net from sequence [i] based on digital (1, 15)-sequence over F₉, using
        Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₉ with g(F) = 1 and N(F) ≥ 16, using
        a function field by GarcÃa and Quoos [i]
  2. digital (189, 210, 838860)-net over F₃, using
    - net defined by OOA [i] based on linear OOA(3²¹⁰, 838860, F₃, 21, 21) (dual of [(838860, 21), 17615850, 22]-NRT-code), using
      - OOA 10-folding and stacking with additional row [i] based on linear OA(3²¹⁰, 8388601, F₃, 21) (dual of [8388601, 8388391, 22]-code), using
        discarding factors / shortening the dual code based on linear OA(3²¹⁰, large, F₃, 21) (dual of [large, large−210, 22]-code), using
        the primitive narrow-sense BCH-code C(I) with length 14348906Â = 3¹⁵âˆ’1, defining interval IÂ =Â [1,21], and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 22 [i]

(233−21, 233, 4194335)-Net over F₃ — Digital

Digital (212, 233, 4194335)-net over F₃, using

embedding of OOA with Gilbertâ€“VarÅ¡amov bound [i] based on linear OOA(3²³³, 4194335, F₃, 2, 21) (dual of [(4194335, 2), 8388437, 22]-NRT-code), using
- (u,Â u+v)-construction [i] based on
  1. linear OOA(3²³, 34, F₃, 2, 10) (dual of [(34, 2), 45, 11]-NRT-code), using
    - OOA 2-folding [i] based on linear OA(3²³, 68, F₃, 10) (dual of [68, 45, 11]-code), using
      - a â€œGloâ€ code from Brouwerâ€™s database [i]
  2. linear OOA(3²¹⁰, 4194301, F₃, 2, 21) (dual of [(4194301, 2), 8388392, 22]-NRT-code), using
    - OOA 2-folding [i] based on linear OA(3²¹⁰, 8388602, F₃, 21) (dual of [8388602, 8388392, 22]-code), using
      - discarding factors / shortening the dual code based on linear OA(3²¹⁰, large, F₃, 21) (dual of [large, large−210, 22]-code), using
        the primitive narrow-sense BCH-code C(I) with length 14348906Â = 3¹⁵âˆ’1, defining interval IÂ =Â [1,21], and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 22 [i]

(233−21, 233, large)-Net in Base 3 — Upper bound on s

There is no (212, 233, large)-net in base 3, because

19 times m-reduction [i] would yield (212, 214, large)-net in base 3, but
- mutually orthogonal hypercube bound [i]