MinT - Best Known (176−64, 176, s)-Nets in Base 4

Best Known (176−64, 176, s)-Nets in Base 4

(176−64, 176, 145)-Net over F₄ — Constructive and digital

Digital (112, 176, 145)-net over F₄, using

(u,Â u+v)-construction [i] based on
1. digital (4, 36, 15)-net over F₄, using
  - net from sequence [i] based on digital (4, 14)-sequence over F₄, using
    - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₄ with g(F) = 4 and N(F) ≥ 15, using
      - an explicitly constructive algebraic function field [i]
2. digital (76, 140, 130)-net over F₄, using
  - trace code for nets [i] based on digital (6, 70, 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]

(176−64, 176, 152)-Net in Base 4 — Constructive

(112, 176, 152)-net in base 4, using

2 times m-reduction [i] based on (112, 178, 152)-net in base 4, using
- trace code for nets [i] based on (23, 89, 76)-net in base 16, using
  - 1 times m-reduction [i] based on (23, 90, 76)-net in base 16, using
    - base change [i] based on digital (5, 72, 76)-net over F₃₂, using
      - net from sequence [i] based on digital (5, 75)-sequence over F₃₂, using
        Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₃₂ with g(F) = 5 and N(F) ≥ 76, using
        a function field by SÃ©mirat [i]

(176−64, 176, 362)-Net over F₄ — Digital

Digital (112, 176, 362)-net over F₄, using

Gilbertâ€“VarÅ¡amov bound [i]

(176−64, 176, 8705)-Net in Base 4 — Upper bound on s

There is no (112, 176, 8706)-net in base 4, because

the generalized Rao bound for nets shows that 4^mÂ â‰¥ 9195 282036 769701 058818 109868 255099 709408 140410 853507 862155 460379 785909 138184 192899 694015 565193 641532 745456 > 4¹⁷⁶ [i]