MinT - Best Known (20, 20+39, s)-Nets in Base 27

Best Known (20, 20+39, s)-Nets in Base 27

(20, 20+39, 108)-Net over F₂₇ — Constructive and digital

Digital (20, 59, 108)-net over F₂₇, using

t-expansion [i] based on digital (18, 59, 108)-net over F₂₇, using
- net from sequence [i] based on digital (18, 107)-sequence over F₂₇, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₂₇ with g(F) = 18 and N(F) ≥ 108, using
    - F₃ from the tower of function fields by Bezerra, GarcÃa, and Stichtenoth over F₂₇ [i]

(20, 20+39, 148)-Net over F₂₇ — Digital

Digital (20, 59, 148)-net over F₂₇, using

t-expansion [i] based on digital (18, 59, 148)-net over F₂₇, using
- net from sequence [i] based on digital (18, 147)-sequence over F₂₇, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₂₇ with g(F) = 18 and N(F) ≥ 148, using
    - a curve from the manYPoints database [i]

(20, 20+39, 160)-Net in Base 27 — Constructive

(20, 59, 160)-net in base 27, using

1 times m-reduction [i] based on (20, 60, 160)-net in base 27, using
- base change [i] based on digital (5, 45, 160)-net over F₈₁, using
  - net from sequence [i] based on digital (5, 159)-sequence over F₈₁, using
    - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₈₁ with g(F) = 5 and N(F) ≥ 160, using
      - a function field by SÃ©mirat [i]

(20, 20+39, 167)-Net in Base 27

(20, 59, 167)-net in base 27, using

1 times m-reduction [i] based on (20, 60, 167)-net in base 27, using
- base change [i] based on digital (5, 45, 167)-net over F₈₁, using
  - net from sequence [i] based on digital (5, 166)-sequence over F₈₁, using
    - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₈₁ with g(F) = 5 and N(F) ≥ 167, using
      - a curve from the manYPoints database [i]

(20, 20+39, 7129)-Net in Base 27 — Upper bound on s

There is no (20, 59, 7130)-net in base 27, because

1 times m-reduction [i] would yield (20, 58, 7130)-net in base 27, but
- the generalized Rao bound for nets shows that 27^mÂ â‰¥ 104556 329630 198109 015105 498415 007565 230946 706867 932810 692264 762010 646421 218926 832833 > 27⁵⁸ [i]