MinT - Best Known (144−52, 144, s)-Nets in Base 4

Best Known (144−52, 144, s)-Nets in Base 4

(144−52, 144, 140)-Net over F₄ — Constructive and digital

Digital (92, 144, 140)-net over F₄, using

(u,Â u+v)-construction [i] based on
1. digital (2, 28, 10)-net over F₄, using
  - net from sequence [i] based on digital (2, 9)-sequence over F₄, using
    - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₄ with g(F) = 2 and N(F) ≥ 10, using
      - an explicitly constructive algebraic function field [i]
2. digital (64, 116, 130)-net over F₄, using
  - trace code for nets [i] based on digital (6, 58, 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]

(144−52, 144, 152)-Net in Base 4 — Constructive

(92, 144, 152)-net in base 4, using

trace code for nets [i] based on (20, 72, 76)-net in base 16, using
- 3 times m-reduction [i] based on (20, 75, 76)-net in base 16, using
  - base change [i] based on digital (5, 60, 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]

(144−52, 144, 312)-Net over F₄ — Digital

Digital (92, 144, 312)-net over F₄, using

Gilbertâ€“VarÅ¡amov bound [i]

(144−52, 144, 7576)-Net in Base 4 — Upper bound on s

There is no (92, 144, 7577)-net in base 4, because

the generalized Rao bound for nets shows that 4^mÂ â‰¥ 498 803048 494038 759114 157064 924874 086232 403462 318849 503159 309832 827920 826241 149585 761296 > 4¹⁴⁴ [i]