MinT - Best Known (231−141, 231, s)-Nets in Base 4

Best Known (231−141, 231, s)-Nets in Base 4

(231−141, 231, 104)-Net over F₄ — Constructive and digital

Digital (90, 231, 104)-net over F₄, using

t-expansion [i] based on digital (73, 231, 104)-net over F₄, using
- net from sequence [i] based on digital (73, 103)-sequence over F₄, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₄ with g(F) = 73 and N(F) ≥ 104, using
    - F₆ from the tower of function fields by GarcÃa and Stichtenoth over F₄ [i]

(231−141, 231, 129)-Net over F₄ — Digital

Digital (90, 231, 129)-net over F₄, using

t-expansion [i] based on digital (81, 231, 129)-net over F₄, using
- net from sequence [i] based on digital (81, 128)-sequence over F₄, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₄ with g(F) = 81 and N(F) ≥ 129, using
    - Drinfeld modules of rank 1 [i]

(231−141, 231, 796)-Net in Base 4 — Upper bound on s

There is no (90, 231, 797)-net in base 4, because

1 times m-reduction [i] would yield (90, 230, 797)-net in base 4, but
- the generalized Rao bound for nets shows that 4^mÂ â‰¥ 3 164933 227354 237988 071764 923700 724986 433976 550313 875318 348626 501341 680301 313364 744195 979441 562190 708214 644189 452577 366320 155722 201938 320720 > 4²³⁰ [i]