MinT - Best Known (143, 143+87, s)-Nets in Base 4

Best Known (143, 143+87, s)-Nets in Base 4

(143, 143+87, 139)-Net over F₄ — Constructive and digital

Digital (143, 230, 139)-net over F₄, using

(u,Â u+v)-construction [i] based on
1. digital (1, 44, 9)-net over F₄, using
  - net from sequence [i] based on digital (1, 8)-sequence over F₄, using
    - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₄ with g(F) = 1 and N(F) ≥ 9, using
      - the Hermitian function field over F₄ [i]
2. digital (99, 186, 130)-net over F₄, using
  - trace code for nets [i] based on digital (6, 93, 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]

(143, 143+87, 152)-Net in Base 4 — Constructive

(143, 230, 152)-net in base 4, using

trace code for nets [i] based on (28, 115, 76)-net in base 16, using
- base change [i] based on digital (5, 92, 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]

(143, 143+87, 399)-Net over F₄ — Digital

Digital (143, 230, 399)-net over F₄, using

Gilbertâ€“VarÅ¡amov bound [i]

(143, 143+87, 9015)-Net in Base 4 — Upper bound on s

There is no (143, 230, 9016)-net in base 4, because

1 times m-reduction [i] would yield (143, 229, 9016)-net in base 4, but
- the generalized Rao bound for nets shows that 4^mÂ â‰¥ 747478 167314 029301 630017 613358 181562 924937 913758 100397 463548 999164 668883 212560 707938 972948 846334 937427 433964 250582 678040 359029 796670 263622 > 4²²⁹ [i]