MinT - Best Known (121−78, 121, s)-Nets in Base 4

Best Known (121−78, 121, s)-Nets in Base 4

(121−78, 121, 56)-Net over F₄ — Constructive and digital

Digital (43, 121, 56)-net over F₄, using

t-expansion [i] based on digital (33, 121, 56)-net over F₄, using
- net from sequence [i] based on digital (33, 55)-sequence over F₄, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₄ with g(F) = 33 and N(F) ≥ 56, using
    - F₅ from the tower of function fields by GarcÃa and Stichtenoth over F₄ [i]

(121−78, 121, 75)-Net over F₄ — Digital

Digital (43, 121, 75)-net over F₄, using

t-expansion [i] based on digital (40, 121, 75)-net over F₄, using
- net from sequence [i] based on digital (40, 74)-sequence over F₄, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₄ with g(F) = 40 and N(F) ≥ 75, using
    - Drinfeld modules of rank 1 [i]

(121−78, 121, 347)-Net in Base 4 — Upper bound on s

There is no (43, 121, 348)-net in base 4, because

the generalized Rao bound for nets shows that 4^mÂ â‰¥ 7 335234 146388 396905 373787 157579 566318 412698 462498 797929 894250 598457 986708 > 4¹²¹ [i]