MinT - Best Known (28, 28+67, s)-Nets in Base 4

Best Known (28, 28+67, s)-Nets in Base 4

(28, 28+67, 34)-Net over F₄ — Constructive and digital

Digital (28, 95, 34)-net over F₄, using

t-expansion [i] based on digital (21, 95, 34)-net over F₄, using
- net from sequence [i] based on digital (21, 33)-sequence over F₄, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₄ with g(F) = 21 and N(F) ≥ 34, using
    - T₅ from the second tower of function fields by GarcÃa and Stichtenoth over F₄ [i]

(28, 28+67, 42)-Net in Base 4 — Constructive

(28, 95, 42)-net in base 4, using

t-expansion [i] based on (27, 95, 42)-net in base 4, using
- net from sequence [i] based on (27, 41)-sequence in base 4, using
  - base expansion [i] based on digital (54, 41)-sequence over F₂, using
    - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₂ with g(F) = 54 and N(F) ≥ 42, using
      - an explicitly constructive algebraic function field [i]

(28, 28+67, 55)-Net over F₄ — Digital

Digital (28, 95, 55)-net over F₄, using

t-expansion [i] based on digital (26, 95, 55)-net over F₄, using
- net from sequence [i] based on digital (26, 54)-sequence over F₄, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₄ with g(F) = 26 and N(F) ≥ 55, using
    - Drinfeld modules of rank 1 [i]

(28, 28+67, 136)-Net in Base 4 — Upper bound on s

There is no (28, 95, 137)-net in base 4, because

extracting embedded orthogonal array [i] would yield OA(4⁹⁵, 137, S₄, 67), but
- the linear programming bound shows that MÂ â‰¥ 22104 781809 587516 096810 013028 563818 545188 418244 815368 767032 507053 165089 425870 777992 758790 455296 / 13 832455 953299 569826 984811 254413 209375 > 4⁹⁵ [i]