MinT - Best Known (221−116, 221, s)-Nets in Base 3

Best Known (221−116, 221, s)-Nets in Base 3

(221−116, 221, 72)-Net over F₃ — Constructive and digital

Digital (105, 221, 72)-net over F₃, using

net from sequence [i] based on digital (105, 71)-sequence over F₃, using
- base reduction for sequences [i] based on digital (17, 71)-sequence over F₉, using
  - s-reduction based on digital (17, 73)-sequence over F₉, using
    - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₉ with g(F) = 17 and N(F) ≥ 74, using
      - a function field by GarcÃa and Quoos [i]

(221−116, 221, 104)-Net over F₃ — Digital

Digital (105, 221, 104)-net over F₃, using

t-expansion [i] based on digital (102, 221, 104)-net over F₃, using
- net from sequence [i] based on digital (102, 103)-sequence over F₃, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₃ with g(F) = 102 and N(F) ≥ 104, using
    - algebraic function fields over â„¤₃ by Niederreiter/Xing [i]

(221−116, 221, 682)-Net in Base 3 — Upper bound on s

There is no (105, 221, 683)-net in base 3, because

the generalized Rao bound for nets shows that 3^mÂ â‰¥ 2884 610538 859302 506199 502703 960273 830441 680630 691826 859889 792920 631955 345845 205174 277500 185227 679656 418245 > 3²²¹ [i]