MinT - Best Known (190−120, 190, s)-Nets in Base 4

Best Known (190−120, 190, s)-Nets in Base 4

(190−120, 190, 66)-Net over F₄ — Constructive and digital

Digital (70, 190, 66)-net over F₄, using

t-expansion [i] based on digital (49, 190, 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]

(190−120, 190, 105)-Net over F₄ — Digital

Digital (70, 190, 105)-net over F₄, using

net from sequence [i] based on digital (70, 104)-sequence over F₄, using
- Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₄ with g(F) = 70 and N(F) ≥ 105, using
  - Drinfeld modules of rank 1 [i]

(190−120, 190, 575)-Net in Base 4 — Upper bound on s

There is no (70, 190, 576)-net in base 4, because

the generalized Rao bound for nets shows that 4^mÂ â‰¥ 2 634309 421312 661192 213517 559780 374338 983660 222326 446929 467974 382603 657065 136400 855145 950182 581886 560151 228954 797455 > 4¹⁹⁰ [i]