MinT - Best Known (52−26, 52, s)-Nets in Base 2

Best Known (52−26, 52, s)-Nets in Base 2

(52−26, 52, 21)-Net over F₂ — Constructive and digital

Digital (26, 52, 21)-net over F₂, using

t-expansion [i] based on digital (21, 52, 21)-net over F₂, using
- net from sequence [i] based on digital (21, 20)-sequence over F₂, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₂ with g(F) = 21 and N(F) ≥ 21, using
    - an explicitly constructive algebraic function field [i]

(52−26, 52, 24)-Net over F₂ — Digital

Digital (26, 52, 24)-net over F₂, using

t-expansion [i] based on digital (25, 52, 24)-net over F₂, using
- net from sequence [i] based on digital (25, 23)-sequence over F₂, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₂ with g(F) = 25 and N(F) ≥ 24, using
    - Drinfeld modules of rank 1 [i]

(52−26, 52, 62)-Net over F₂ — Upper bound on s (digital)

There is no digital (26, 52, 63)-net over F₂, because

extracting embedded orthogonal array [i] would yield linear OA(2⁵², 63, F₂, 26) (dual of [63, 11, 27]-code), but
- â€œJaâ€ bound on codes from Brouwerâ€™s database [i]

(52−26, 52, 65)-Net in Base 2 — Upper bound on s

There is no (26, 52, 66)-net in base 2, because

extracting embedded orthogonal array [i] would yield OA(2⁵², 66, S₂, 26), but
- the linear programming bound shows that MÂ â‰¥ 12 898309 332789 100544 / 2499 > 2⁵² [i]