MinT - Best Known (230−121, 230, s)-Nets in Base 4

Best Known (230−121, 230, s)-Nets in Base 4

(230−121, 230, 130)-Net over F₄ — Constructive and digital

Digital (109, 230, 130)-net over F₄, using

t-expansion [i] based on digital (105, 230, 130)-net over F₄, using
- net from sequence [i] based on digital (105, 129)-sequence over F₄, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₄ with g(F) = 105 and N(F) ≥ 130, using
    - T₇ from the second tower of function fields by GarcÃa and Stichtenoth over F₄ [i]

(230−121, 230, 165)-Net over F₄ — Digital

Digital (109, 230, 165)-net over F₄, using

net from sequence [i] based on digital (109, 164)-sequence over F₄, using
- Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₄ with g(F) = 109 and N(F) ≥ 165, using
  - Drinfeld modules of rank 1 [i]

(230−121, 230, 1485)-Net in Base 4 — Upper bound on s

There is no (109, 230, 1486)-net in base 4, because

1 times m-reduction [i] would yield (109, 229, 1486)-net in base 4, but
- the generalized Rao bound for nets shows that 4^mÂ â‰¥ 744576 426223 141273 923092 327972 262101 531604 440273 802305 502534 068564 846063 149330 466129 860867 739750 304009 852747 352978 560794 526345 169688 917468 > 4²²⁹ [i]