MinT - Best Known (186−127, 186, s)-Nets in Base 4

Best Known (186−127, 186, s)-Nets in Base 4

(186−127, 186, 66)-Net over F₄ — Constructive and digital

Digital (59, 186, 66)-net over F₄, using

t-expansion [i] based on digital (49, 186, 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]

(186−127, 186, 91)-Net over F₄ — Digital

Digital (59, 186, 91)-net over F₄, using

t-expansion [i] based on digital (50, 186, 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]

(186−127, 186, 424)-Net in Base 4 — Upper bound on s

There is no (59, 186, 425)-net in base 4, because

1 times m-reduction [i] would yield (59, 185, 425)-net in base 4, but
- the generalized Rao bound for nets shows that 4^mÂ â‰¥ 2453 481757 182557 242620 572788 974582 297835 528416 967117 841999 301350 065801 962950 156551 226931 348336 800707 607967 694720 > 4¹⁸⁵ [i]