MinT - Best Known (191−105, 191, s)-Nets in Base 4

Best Known (191−105, 191, s)-Nets in Base 4

(191−105, 191, 104)-Net over F₄ — Constructive and digital

Digital (86, 191, 104)-net over F₄, using

t-expansion [i] based on digital (73, 191, 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]

(191−105, 191, 129)-Net over F₄ — Digital

Digital (86, 191, 129)-net over F₄, using

t-expansion [i] based on digital (81, 191, 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]

(191−105, 191, 1025)-Net in Base 4 — Upper bound on s

There is no (86, 191, 1026)-net in base 4, because

1 times m-reduction [i] would yield (86, 190, 1026)-net in base 4, but
- the generalized Rao bound for nets shows that 4^mÂ â‰¥ 2 473884 021178 992255 691184 468750 322883 221909 177287 484000 832554 981621 905821 522039 512841 432582 341058 417073 977036 199680 > 4¹⁹⁰ [i]