MinT - Best Known (167−111, 167, s)-Nets in Base 4

Best Known (167−111, 167, s)-Nets in Base 4

(167−111, 167, 66)-Net over F₄ — Constructive and digital

Digital (56, 167, 66)-net over F₄, using

t-expansion [i] based on digital (49, 167, 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]

(167−111, 167, 91)-Net over F₄ — Digital

Digital (56, 167, 91)-net over F₄, using

t-expansion [i] based on digital (50, 167, 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]

(167−111, 167, 423)-Net in Base 4 — Upper bound on s

There is no (56, 167, 424)-net in base 4, because

1 times m-reduction [i] would yield (56, 166, 424)-net in base 4, but
- the generalized Rao bound for nets shows that 4^mÂ â‰¥ 9726 185534 166873 784068 591685 341218 069935 573188 858917 309266 246160 920531 878448 288567 732303 103358 690280 > 4¹⁶⁶ [i]