MinT - Best Known (41, 174, s)-Nets in Base 4

Best Known (41, 174, s)-Nets in Base 4

(41, 174, 56)-Net over F₄ — Constructive and digital

Digital (41, 174, 56)-net over F₄, using

t-expansion [i] based on digital (33, 174, 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]

(41, 174, 75)-Net over F₄ — Digital

Digital (41, 174, 75)-net over F₄, using

t-expansion [i] based on digital (40, 174, 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]

(41, 174, 172)-Net over F₄ — Upper bound on s (digital)

There is no digital (41, 174, 173)-net over F₄, because

5 times m-reduction [i] would yield digital (41, 169, 173)-net over F₄, but
- extracting embedded orthogonal array [i] would yield linear OA(4¹⁶⁹, 173, F₄, 128) (dual of [173, 4, 129]-code), but
  - Griesmer bound [i]

(41, 174, 269)-Net in Base 4 — Upper bound on s

There is no (41, 174, 270)-net in base 4, because

1 times m-reduction [i] would yield (41, 173, 270)-net in base 4, but
- the generalized Rao bound for nets shows that 4^mÂ â‰¥ 160 637163 140200 754713 270033 611035 093795 772667 278925 747772 685792 899030 434592 166722 644008 001762 233263 257192 > 4¹⁷³ [i]