MinT - Best Known (142−47, 142, s)-Nets in Base 4

Best Known (142−47, 142, s)-Nets in Base 4

(142−47, 142, 195)-Net over F₄ — Constructive and digital

Digital (95, 142, 195)-net over F₄, using

4¹ times duplication [i] based on digital (94, 141, 195)-net over F₄, using
- trace code for nets [i] based on digital (0, 47, 65)-net over F₆₄, using
  - net from sequence [i] based on digital (0, 64)-sequence over F₆₄, using
    - generalized Faure sequence [i]
    - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₆₄ with g(F) = 0 and N(F) ≥ 65, using
      - the rational function field F₆₄(x) [i]
    - Niederreiter sequence [i]

(142−47, 142, 208)-Net in Base 4 — Constructive

(95, 142, 208)-net in base 4, using

4² times duplication [i] based on (93, 140, 208)-net in base 4, using
- trace code for nets [i] based on (23, 70, 104)-net in base 16, using
  - base change [i] based on digital (9, 56, 104)-net over F₃₂, using
    - net from sequence [i] based on digital (9, 103)-sequence over F₃₂, using
      - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₃₂ with g(F) = 9 and N(F) ≥ 104, using
        a function field by SÃ©mirat [i]

(142−47, 142, 423)-Net over F₄ — Digital

Digital (95, 142, 423)-net over F₄, using

Gilbertâ€“VarÅ¡amov bound [i]

(142−47, 142, 15406)-Net in Base 4 — Upper bound on s

There is no (95, 142, 15407)-net in base 4, because

1 times m-reduction [i] would yield (95, 141, 15407)-net in base 4, but
- the generalized Rao bound for nets shows that 4^mÂ â‰¥ 7 778564 664027 761510 644604 098478 227576 816805 003783 802946 637824 946773 064493 552761 224792 > 4¹⁴¹ [i]