MinT - Best Known (81, 81+105, s)-Nets in Base 3

Best Known (81, 81+105, s)-Nets in Base 3

(81, 81+105, 56)-Net over F₃ — Constructive and digital

Digital (81, 186, 56)-net over F₃, using

net from sequence [i] based on digital (81, 55)-sequence over F₃, using
- base reduction for sequences [i] based on digital (13, 55)-sequence over F₉, using
  - s-reduction based on digital (13, 63)-sequence over F₉, using
    - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₉ with g(F) = 13 and N(F) ≥ 64, using
      - a function field by GarcÃa and Quoos [i]

(81, 81+105, 84)-Net over F₃ — Digital

Digital (81, 186, 84)-net over F₃, using

t-expansion [i] based on digital (71, 186, 84)-net over F₃, using
- net from sequence [i] based on digital (71, 83)-sequence over F₃, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₃ with g(F) = 71 and N(F) ≥ 84, using
    - algebraic function fields over â„¤₃ by Niederreiter/Xing [i]

(81, 81+105, 454)-Net in Base 3 — Upper bound on s

There is no (81, 186, 455)-net in base 3, because

1 times m-reduction [i] would yield (81, 185, 455)-net in base 3, but
- the generalized Rao bound for nets shows that 3^mÂ â‰¥ 19600 808963 252795 998396 609750 516265 958245 983524 604350 066418 333604 718931 100992 328224 385817 > 3¹⁸⁵ [i]