MinT - Best Known (258−163, 258, s)-Nets in Base 4

Best Known (258−163, 258, s)-Nets in Base 4

(258−163, 258, 104)-Net over F₄ — Constructive and digital

Digital (95, 258, 104)-net over F₄, using

t-expansion [i] based on digital (73, 258, 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]

(258−163, 258, 144)-Net over F₄ — Digital

Digital (95, 258, 144)-net over F₄, using

t-expansion [i] based on digital (91, 258, 144)-net over F₄, using
- net from sequence [i] based on digital (91, 143)-sequence over F₄, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₄ with g(F) = 91 and N(F) ≥ 144, using
    - Drinfeld modules of rank 1 [i]

(258−163, 258, 774)-Net in Base 4 — Upper bound on s

There is no (95, 258, 775)-net in base 4, because

1 times m-reduction [i] would yield (95, 257, 775)-net in base 4, but
- the generalized Rao bound for nets shows that 4^mÂ â‰¥ 56501 180907 355634 979600 697562 816235 234394 732179 470360 311611 248964 503039 702110 094710 013091 961563 387568 587942 673103 159768 167666 679686 407112 130981 541606 562144 > 4²⁵⁷ [i]