MinT - Best Known (180−90, 180, s)-Nets in Base 3

Best Known (180−90, 180, s)-Nets in Base 3

(180−90, 180, 65)-Net over F₃ — Constructive and digital

Digital (90, 180, 65)-net over F₃, using

6 times m-reduction [i] based on digital (90, 186, 65)-net over F₃, using
- (u,Â u+v)-construction [i] based on
  1. digital (15, 63, 28)-net over F₃, using
    - net from sequence [i] based on digital (15, 27)-sequence over F₃, using
      - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₃ with g(F) = 15 and N(F) ≥ 28, using
        an explicitly constructive algebraic function field [i]
  2. digital (27, 123, 37)-net over F₃, using
    - net from sequence [i] based on digital (27, 36)-sequence over F₃, using
      - Niederreiterâ€“Xing sequence constructionÂ III based on the algebraic function field F/F₃ with g(F)Â =Â 26, N(F)Â =Â 36, and 1 place with degree 2 [i] based on function field F/F₃ with g(F) = 26 and N(F) ≥ 36, using an explicitly constructive algebraic function field [i]

(180−90, 180, 96)-Net over F₃ — Digital

Digital (90, 180, 96)-net over F₃, using

t-expansion [i] based on digital (89, 180, 96)-net over F₃, using
- net from sequence [i] based on digital (89, 95)-sequence over F₃, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₃ with g(F) = 89 and N(F) ≥ 96, using
    - algebraic function fields over â„¤₃ by Niederreiter/Xing [i]

(180−90, 180, 670)-Net in Base 3 — Upper bound on s

There is no (90, 180, 671)-net in base 3, because

the generalized Rao bound for nets shows that 3^mÂ â‰¥ 78 597341 188638 343856 655567 530298 697974 495978 728539 624844 265981 402228 755474 564466 995175 > 3¹⁸⁰ [i]