MinT - Best Known (145, 145+87, s)-Nets in Base 4

Best Known (145, 145+87, s)-Nets in Base 4

(145, 145+87, 144)-Net over F₄ — Constructive and digital

Digital (145, 232, 144)-net over F₄, using

(u,Â u+v)-construction [i] based on
1. digital (3, 46, 14)-net over F₄, using
  - net from sequence [i] based on digital (3, 13)-sequence over F₄, using
    - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₄ with g(F) = 3 and N(F) ≥ 14, using
      - an explicitly constructive algebraic function field [i]
2. digital (99, 186, 130)-net over F₄, using
  - trace code for nets [i] based on digital (6, 93, 65)-net over F₁₆, using
    - net from sequence [i] based on digital (6, 64)-sequence over F₁₆, using
      - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₁₆ with g(F) = 6 and N(F) ≥ 65, using
        the Hermitian function field over F₁₆ [i]

(145, 145+87, 152)-Net in Base 4 — Constructive

(145, 232, 152)-net in base 4, using

4² times duplication [i] based on (143, 230, 152)-net in base 4, using
- trace code for nets [i] based on (28, 115, 76)-net in base 16, using
  - base change [i] based on digital (5, 92, 76)-net over F₃₂, using
    - net from sequence [i] based on digital (5, 75)-sequence over F₃₂, using
      - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₃₂ with g(F) = 5 and N(F) ≥ 76, using
        a function field by SÃ©mirat [i]

(145, 145+87, 414)-Net over F₄ — Digital

Digital (145, 232, 414)-net over F₄, using

Gilbertâ€“VarÅ¡amov bound [i]

(145, 145+87, 9617)-Net in Base 4 — Upper bound on s

There is no (145, 232, 9618)-net in base 4, because

1 times m-reduction [i] would yield (145, 231, 9618)-net in base 4, but
- the generalized Rao bound for nets shows that 4^mÂ â‰¥ 11 915043 521370 062837 003969 325931 697393 891322 529698 742202 760039 553164 657627 928466 524782 708201 909537 735033 773439 365116 029107 527535 465742 764320 > 4²³¹ [i]