MinT - Best Known (18, 18+24, s)-Nets in Base 128

Best Known (18, 18+24, s)-Nets in Base 128

(18, 18+24, 384)-Net over F₁₂₈ — Constructive and digital

Digital (18, 42, 384)-net over F₁₂₈, using

(u,Â u+v)-construction [i] based on
1. digital (3, 15, 192)-net over F₁₂₈, using
  - net from sequence [i] based on digital (3, 191)-sequence over F₁₂₈, using
    - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₁₂₈ with g(F) = 3 and N(F) ≥ 192, using
      - a function field by SÃ©mirat [i]
2. digital (3, 27, 192)-net over F₁₂₈, using
  - net from sequence [i] based on digital (3, 191)-sequence over F₁₂₈ (see above)

(18, 18+24, 514)-Net in Base 128 — Constructive

(18, 42, 514)-net in base 128, using

(u,Â u+v)-construction [i] based on
1. (2, 14, 257)-net in base 128, using
  - 2 times m-reduction [i] based on (2, 16, 257)-net in base 128, using
    - base change [i] based on digital (0, 14, 257)-net over F₂₅₆, using
      - net from sequence [i] based on digital (0, 256)-sequence over F₂₅₆, using
        generalized Faure sequence [i]
        Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₂₅₆ with g(F) = 0 and N(F) ≥ 257, using
        the rational function field F₂₅₆(x) [i]
        Niederreiter sequence [i]
2. (4, 28, 257)-net in base 128, using
  - 4 times m-reduction [i] based on (4, 32, 257)-net in base 128, using
    - base change [i] based on digital (0, 28, 257)-net over F₂₅₆, using
      - net from sequence [i] based on digital (0, 256)-sequence over F₂₅₆ (see above)

(18, 18+24, 535)-Net over F₁₂₈ — Digital

Digital (18, 42, 535)-net over F₁₂₈, using

Gilbertâ€“VarÅ¡amov bound [i]

(18, 18+24, 988075)-Net in Base 128 — Upper bound on s

There is no (18, 42, 988076)-net in base 128, because

the generalized Rao bound for nets shows that 128^mÂ â‰¥ 31828 883295 805807 618039 649716 172371 639535 857759 503098 807060 850490 144502 875413 322788 926616 > 128⁴² [i]