MinT - Best Known (182−67, 182, s)-Nets in Base 4

Best Known (182−67, 182, s)-Nets in Base 4

(182−67, 182, 144)-Net over F₄ — Constructive and digital

Digital (115, 182, 144)-net over F₄, using

(u,Â u+v)-construction [i] based on
1. digital (3, 36, 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 (79, 146, 130)-net over F₄, using
  - trace code for nets [i] based on digital (6, 73, 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]

(182−67, 182, 152)-Net in Base 4 — Constructive

(115, 182, 152)-net in base 4, using

4² times duplication [i] based on (113, 180, 152)-net in base 4, using
- trace code for nets [i] based on (23, 90, 76)-net in base 16, using
  - base change [i] based on digital (5, 72, 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]

(182−67, 182, 358)-Net over F₄ — Digital

Digital (115, 182, 358)-net over F₄, using

Gilbertâ€“VarÅ¡amov bound [i]

(182−67, 182, 8772)-Net in Base 4 — Upper bound on s

There is no (115, 182, 8773)-net in base 4, because

1 times m-reduction [i] would yield (115, 181, 8773)-net in base 4, but
- the generalized Rao bound for nets shows that 4^mÂ â‰¥ 9 423064 525043 021871 424550 836884 344560 088071 900247 321416 205987 832846 514205 471221 169484 173311 568857 703086 249120 > 4¹⁸¹ [i]