MinT - Best Known (131, 215, s)-Nets in Base 4

Best Known (131, 215, s)-Nets in Base 4

(131, 215, 137)-Net over F₄ — Constructive and digital

Digital (131, 215, 137)-net over F₄, using

2 times m-reduction [i] based on digital (131, 217, 137)-net over F₄, using
- (u,Â u+v)-construction [i] based on
  1. digital (15, 58, 33)-net over F₄, using
    - net from sequence [i] based on digital (15, 32)-sequence over F₄, using
      - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₄ with g(F) = 15 and N(F) ≥ 33, using
        an explicitly constructive algebraic function field [i]
  2. digital (73, 159, 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]

(131, 215, 337)-Net over F₄ — Digital

Digital (131, 215, 337)-net over F₄, using

Gilbertâ€“VarÅ¡amov bound [i]

(131, 215, 6613)-Net in Base 4 — Upper bound on s

There is no (131, 215, 6614)-net in base 4, because

the generalized Rao bound for nets shows that 4^mÂ â‰¥ 2790 108249 781579 311097 184665 921823 472648 416529 045735 187158 290165 392318 010118 790014 066589 410791 442714 842067 779952 613896 089629 124920 > 4²¹⁵ [i]