MinT - Best Known (240−154, 240, s)-Nets in Base 4

Best Known (240−154, 240, s)-Nets in Base 4

(240−154, 240, 104)-Net over F₄ — Constructive and digital

Digital (86, 240, 104)-net over F₄, using

t-expansion [i] based on digital (73, 240, 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]

(240−154, 240, 129)-Net over F₄ — Digital

Digital (86, 240, 129)-net over F₄, using

t-expansion [i] based on digital (81, 240, 129)-net over F₄, using
- net from sequence [i] based on digital (81, 128)-sequence over F₄, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₄ with g(F) = 81 and N(F) ≥ 129, using
    - Drinfeld modules of rank 1 [i]

(240−154, 240, 678)-Net in Base 4 — Upper bound on s

There is no (86, 240, 679)-net in base 4, because

the generalized Rao bound for nets shows that 4^mÂ â‰¥ 3 447201 731036 802250 231034 774956 441176 192318 197707 735891 024603 416201 225242 087771 626765 881290 452097 672953 046938 077551 111329 197242 593107 737368 570000 > 4²⁴⁰ [i]