MinT - Best Known (172−117, 172, s)-Nets in Base 8

Best Known (172−117, 172, s)-Nets in Base 8

(172−117, 172, 98)-Net over F₈ — Constructive and digital

Digital (55, 172, 98)-net over F₈, using

t-expansion [i] based on digital (37, 172, 98)-net over F₈, using
- net from sequence [i] based on digital (37, 97)-sequence over F₈, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₈ with g(F) = 37 and N(F) ≥ 98, using
    - F₅ from the tower of function fields over F₈ by van der Geer and van der Vlugt [i]

(172−117, 172, 144)-Net over F₈ — Digital

Digital (55, 172, 144)-net over F₈, using

t-expansion [i] based on digital (45, 172, 144)-net over F₈, using
- net from sequence [i] based on digital (45, 143)-sequence over F₈, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₈ with g(F) = 45 and N(F) ≥ 144, using
    - Drinfeld modules of rank 1 [i]

(172−117, 172, 1438)-Net in Base 8 — Upper bound on s

There is no (55, 172, 1439)-net in base 8, because

1 times m-reduction [i] would yield (55, 171, 1439)-net in base 8, but
- the generalized Rao bound for nets shows that 8^mÂ â‰¥ 27744 231365 656232 246511 551790 281738 958652 937648 853849 306913 877172 557148 230524 692576 264295 994059 896975 964759 755138 168239 916850 292175 296875 574320 132107 894060 > 8¹⁷¹ [i]