MinT - Best Known (49, 68, s)-Nets in Base 128

Best Known (49, 68, s)-Nets in Base 128

(49, 68, 233275)-Net over F₁₂₈ — Constructive and digital

Digital (49, 68, 233275)-net over F₁₂₈, using

(u,Â u+v)-construction [i] based on
1. digital (4, 13, 258)-net over F₁₂₈, using
  - (u,Â u+v)-construction [i] based on
    1. digital (0, 4, 129)-net over F₁₂₈, using
      - net from sequence [i] based on digital (0, 128)-sequence over F₁₂₈, using
        generalized Faure sequence [i]
        Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₁₂₈ with g(F) = 0 and N(F) ≥ 129, using
        the rational function field F₁₂₈(x) [i]
        Niederreiter sequence [i]
    2. digital (0, 9, 129)-net over F₁₂₈, using
      - net from sequence [i] based on digital (0, 128)-sequence over F₁₂₈ (see above)
2. digital (36, 55, 233017)-net over F₁₂₈, using
  - net defined by OOA [i] based on linear OOA(128⁵⁵, 233017, F₁₂₈, 19, 19) (dual of [(233017, 19), 4427268, 20]-NRT-code), using
    - OOA 9-folding and stacking with additional row [i] based on linear OA(128⁵⁵, 2097154, F₁₂₈, 19) (dual of [2097154, 2097099, 20]-code), using
      - discarding factors / shortening the dual code based on linear OA(128⁵⁵, 2097155, F₁₂₈, 19) (dual of [2097155, 2097100, 20]-code), using
        constructionÂ X applied to C_e(18) âŠ‚ C_e(17) [i] based on
        linear OA(128⁵⁵, 2097152, F₁₂₈, 19) (dual of [2097152, 2097097, 20]-code), using an extension C_e(18) of the primitive narrow-sense BCH-code C(I) with length 2097151Â = 128³âˆ’1, defining interval IÂ =Â [1,18], and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 19 [i]
        linear OA(128⁵², 2097152, F₁₂₈, 18) (dual of [2097152, 2097100, 19]-code), using an extension C_e(17) of the primitive narrow-sense BCH-code C(I) with length 2097151Â = 128³âˆ’1, defining interval IÂ =Â [1,17], and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 18 [i]
        linear OA(128⁰, 3, F₁₂₈, 0) (dual of [3, 3, 1]-code), using
        discarding factors / shortening the dual code based on linear OA(128⁰, s, F₁₂₈, 0) (dual of [s, s, 1]-code) with arbitrarily large s, using
        OA with only one run / dual of code without redundancy [i]

(49, 68, 932067)-Net in Base 128 — Constructive

(49, 68, 932067)-net in base 128, using

128² times duplication [i] based on (47, 66, 932067)-net in base 128, using
- net defined by OOA [i] based on OOA(128⁶⁶, 932067, S₁₂₈, 21, 19), using
  - OOA 3-folding and stacking with additional row [i] based on OOA(128⁶⁶, 2796202, S₁₂₈, 3, 19), using
    - 1 times NRT-code embedding in larger space [i] based on OOA(128⁶³, 2796201, S₁₂₈, 3, 19), using
      - OOA 3-folding [i] based on OA(128⁶³, large, S₁₂₈, 19), using
        discarding parts of the base [i] based on linear OA(256⁵⁵, large, F₂₅₆, 19) (dual of [large, large−55, 20]-code), using
        the primitive expurgated narrow-sense BCH-code C(I) with length 16777215Â = 256³âˆ’1, defining interval IÂ =Â [0,18], and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 20 [i]

(49, 68, 5431228)-Net over F₁₂₈ — Digital

Digital (49, 68, 5431228)-net over F₁₂₈, using

Gilbertâ€“VarÅ¡amov bound [i]

(49, 68, large)-Net in Base 128 — Upper bound on s

There is no (49, 68, large)-net in base 128, because

17 times m-reduction [i] would yield (49, 51, large)-net in base 128, but
- mutually orthogonal hypercube bound [i]

Best Known (49, 68, s)-Nets in Base 128

(49, 68, 233275)-Net over F128 — Constructive and digital

(49, 68, 932067)-Net in Base 128 — Constructive

(49, 68, 5431228)-Net over F128 — Digital

(49, 68, large)-Net in Base 128 — Upper bound on s

(49, 68, 233275)-Net over F₁₂₈ — Constructive and digital

(49, 68, 5431228)-Net over F₁₂₈ — Digital