MinT - Best Known (159−99, 159, s)-Nets in Base 4

Best Known (159−99, 159, s)-Nets in Base 4

(159−99, 159, 66)-Net over F₄ — Constructive and digital

Digital (60, 159, 66)-net over F₄, using

t-expansion [i] based on digital (49, 159, 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]

(159−99, 159, 91)-Net over F₄ — Digital

Digital (60, 159, 91)-net over F₄, using

t-expansion [i] based on digital (50, 159, 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]

(159−99, 159, 517)-Net in Base 4 — Upper bound on s

There is no (60, 159, 518)-net in base 4, because

1 times m-reduction [i] would yield (60, 158, 518)-net in base 4, but
- the generalized Rao bound for nets shows that 4^mÂ â‰¥ 141762 310787 273743 074070 290049 231754 528483 753170 523550 580286 355295 667924 832827 522827 699348 345696 > 4¹⁵⁸ [i]