MinT - Best Known (139−51, 139, s)-Nets in Base 4

Best Known (139−51, 139, s)-Nets in Base 4

(139−51, 139, 135)-Net over F₄ — Constructive and digital

Digital (88, 139, 135)-net over F₄, using

(u,Â u+v)-construction [i] based on
1. digital (0, 25, 5)-net over F₄, using
  - net from sequence [i] based on digital (0, 4)-sequence over F₄, using
    - generalized Faure sequence [i]
    - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₄ with g(F) = 0 and N(F) ≥ 5, using
      - the rational function field F₄(x) [i]
    - Niederreiter sequence [i]
2. digital (63, 114, 130)-net over F₄, using
  - trace code for nets [i] based on digital (6, 57, 65)-net over F₁₆, using
    - net from sequence [i] based on digital (6, 64)-sequence over F₁₆, using
      - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₁₆ with g(F) = 6 and N(F) ≥ 65, using
        the Hermitian function field over F₁₆ [i]

(139−51, 139, 287)-Net over F₄ — Digital

Digital (88, 139, 287)-net over F₄, using

Gilbertâ€“VarÅ¡amov bound [i]

(139−51, 139, 7122)-Net in Base 4 — Upper bound on s

There is no (88, 139, 7123)-net in base 4, because

1 times m-reduction [i] would yield (88, 138, 7123)-net in base 4, but
- the generalized Rao bound for nets shows that 4^mÂ â‰¥ 121583 529169 208048 070383 484096 069353 239741 517890 195325 657038 677429 372527 245468 019056 > 4¹³⁸ [i]