MinT - Best Known (47−37, 47, s)-Nets in Base 81

Best Known (47−37, 47, s)-Nets in Base 81

(47−37, 47, 172)-Net over F₈₁ — Constructive and digital

Digital (10, 47, 172)-net over F₈₁, using

t-expansion [i] based on digital (7, 47, 172)-net over F₈₁, using
- net from sequence [i] based on digital (7, 171)-sequence over F₈₁, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₈₁ with g(F) = 7 and N(F) ≥ 172, using
    - a function field by SÃ©mirat [i]

(47−37, 47, 244)-Net over F₈₁ — Digital

Digital (10, 47, 244)-net over F₈₁, using

t-expansion [i] based on digital (9, 47, 244)-net over F₈₁, using
- net from sequence [i] based on digital (9, 243)-sequence over F₈₁, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₈₁ with g(F) = 9 and N(F) ≥ 244, using
    - K_1,1 from the tower of function fields by Niederreiter and Xing based on the tower by GarcÃa and Stichtenoth over F₈₁ [i]

(47−37, 47, 7107)-Net in Base 81 — Upper bound on s

There is no (10, 47, 7108)-net in base 81, because

1 times m-reduction [i] would yield (10, 46, 7108)-net in base 81, but
- the generalized Rao bound for nets shows that 81^mÂ â‰¥ 6170 490517 059654 636463 198520 294126 796811 656865 304192 742097 451076 914323 299629 070126 446721 > 81⁴⁶ [i]