MinT - Best Known (163−108, 163, s)-Nets in Base 4

Best Known (163−108, 163, s)-Nets in Base 4

(163−108, 163, 66)-Net over F₄ — Constructive and digital

Digital (55, 163, 66)-net over F₄, using

t-expansion [i] based on digital (49, 163, 66)-net over F₄, using
- net from sequence [i] based on digital (49, 65)-sequence over F₄, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₄ with g(F) = 49 and N(F) ≥ 66, using
    - T₆ from the second tower of function fields by GarcÃa and Stichtenoth over F₄ [i]

(163−108, 163, 91)-Net over F₄ — Digital

Digital (55, 163, 91)-net over F₄, using

t-expansion [i] based on digital (50, 163, 91)-net over F₄, using
- net from sequence [i] based on digital (50, 90)-sequence over F₄, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₄ with g(F) = 50 and N(F) ≥ 91, using
    - a curve from the manYPoints database [i]

(163−108, 163, 416)-Net in Base 4 — Upper bound on s

There is no (55, 163, 417)-net in base 4, because

the generalized Rao bound for nets shows that 4^mÂ â‰¥ 153 716293 536491 830883 715807 661938 439843 398924 449410 510263 645346 875781 269890 180919 817182 721751 129920 > 4¹⁶³ [i]