MinT - Best Known (91−50, 91, s)-Nets in Base 4

Best Known (91−50, 91, s)-Nets in Base 4

(91−50, 91, 56)-Net over F₄ — Constructive and digital

Digital (41, 91, 56)-net over F₄, using

t-expansion [i] based on digital (33, 91, 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]

(91−50, 91, 75)-Net over F₄ — Digital

Digital (41, 91, 75)-net over F₄, using

t-expansion [i] based on digital (40, 91, 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]

(91−50, 91, 507)-Net in Base 4 — Upper bound on s

There is no (41, 91, 508)-net in base 4, because

the generalized Rao bound for nets shows that 4^mÂ â‰¥ 6 368022 623580 424035 061527 202071 369215 746601 857857 860599 > 4⁹¹ [i]