MinT - Best Known (161−55, 161, s)-Nets in Base 4

Best Known (161−55, 161, s)-Nets in Base 4

(161−55, 161, 158)-Net over F₄ — Constructive and digital

Digital (106, 161, 158)-net over F₄, using

(u,Â u+v)-construction [i] based on
1. digital (12, 39, 28)-net over F₄, using
  - net from sequence [i] based on digital (12, 27)-sequence over F₄, using
    - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₄ with g(F) = 12 and N(F) ≥ 28, using
      - an explicitly constructive algebraic function field [i]
2. digital (67, 122, 130)-net over F₄, using
  - trace code for nets [i] based on digital (6, 61, 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]

(161−55, 161, 208)-Net in Base 4 — Constructive

(106, 161, 208)-net in base 4, using

4¹ times duplication [i] based on (105, 160, 208)-net in base 4, using
- trace code for nets [i] based on (25, 80, 104)-net in base 16, using
  - base change [i] based on digital (9, 64, 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]

(161−55, 161, 417)-Net over F₄ — Digital

Digital (106, 161, 417)-net over F₄, using

Gilbertâ€“VarÅ¡amov bound [i]

(161−55, 161, 13438)-Net in Base 4 — Upper bound on s

There is no (106, 161, 13439)-net in base 4, because

1 times m-reduction [i] would yield (106, 160, 13439)-net in base 4, but
- the generalized Rao bound for nets shows that 4^mÂ â‰¥ 2 139768 517461 170216 597248 796914 032146 407147 223723 180045 850622 351689 374156 430719 094183 102725 076400 > 4¹⁶⁰ [i]