MinT - Best Known (257−170, 257, s)-Nets in Base 2

Best Known (257−170, 257, s)-Nets in Base 2

(257−170, 257, 52)-Net over F₂ — Constructive and digital

Digital (87, 257, 52)-net over F₂, using

t-expansion [i] based on digital (85, 257, 52)-net over F₂, using
- net from sequence [i] based on digital (85, 51)-sequence over F₂, using
  - Niederreiterâ€“Xing sequence constructionÂ III based on the algebraic function field F/F₂ with g(F)Â =Â 69, N(F)Â =Â 48, 1 place with degree 2, and 3 places with degree 6 [i] based on function field F/F₂ with g(F) = 69 and N(F) ≥ 48, using an explicitly constructive algebraic function field [i]

(257−170, 257, 57)-Net over F₂ — Digital

Digital (87, 257, 57)-net over F₂, using

t-expansion [i] based on digital (83, 257, 57)-net over F₂, using
- net from sequence [i] based on digital (83, 56)-sequence over F₂, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₂ with g(F) = 83 and N(F) ≥ 57, using
    - an algebraic function field by Auer [i]

(257−170, 257, 125)-Net in Base 2 — Upper bound on s

There is no (87, 257, 126)-net in base 2, because

12 times m-reduction [i] would yield (87, 245, 126)-net in base 2, but
- extracting embedded OOA [i] would yield OOA(2²⁴⁵, 126, S₂, 2, 158), but
  - the (dual) Plotkin bound for OOAs shows that MÂ â‰¥ 3618 502788 666131 106986 593281 521497 120414 687020 801267 626233 049500 247285 301248 / 53 > 2²⁴⁵ [i]