MinT - Best Known (137, 225, s)-Nets in Base 4

Best Known (137, 225, s)-Nets in Base 4

(137, 225, 137)-Net over F₄ — Constructive and digital

Digital (137, 225, 137)-net over F₄, using

10 times m-reduction [i] based on digital (137, 235, 137)-net over F₄, using
- (u,Â u+v)-construction [i] based on
  1. digital (15, 64, 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, 171, 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]

(137, 225, 349)-Net over F₄ — Digital

Digital (137, 225, 349)-net over F₄, using

Gilbertâ€“VarÅ¡amov bound [i]

(137, 225, 6858)-Net in Base 4 — Upper bound on s

There is no (137, 225, 6859)-net in base 4, because

the generalized Rao bound for nets shows that 4^mÂ â‰¥ 2914 102566 368332 877231 417265 501326 260431 261979 389720 350436 080299 673457 720239 406395 243934 052253 801475 377268 287203 793846 408891 937571 684912 > 4²²⁵ [i]