MinT - Best Known (109, 109+147, s)-Nets in Base 4

Best Known (109, 109+147, s)-Nets in Base 4

(109, 109+147, 130)-Net over F₄ — Constructive and digital

Digital (109, 256, 130)-net over F₄, using

t-expansion [i] based on digital (105, 256, 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]

(109, 109+147, 165)-Net over F₄ — Digital

Digital (109, 256, 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]

(109, 109+147, 1124)-Net in Base 4 — Upper bound on s

There is no (109, 256, 1125)-net in base 4, because

1 times m-reduction [i] would yield (109, 255, 1125)-net in base 4, but
- the generalized Rao bound for nets shows that 4^mÂ â‰¥ 3461 920780 810447 964499 844046 541288 251553 441738 180423 064075 860207 371141 397519 991144 372887 192730 506739 136400 132877 287768 487916 243973 551843 944453 809955 944736 > 4²⁵⁵ [i]