MinT - Best Known (131−81, 131, s)-Nets in Base 3

Best Known (131−81, 131, s)-Nets in Base 3

(131−81, 131, 48)-Net over F₃ — Constructive and digital

Digital (50, 131, 48)-net over F₃, using

t-expansion [i] based on digital (45, 131, 48)-net over F₃, using
- net from sequence [i] based on digital (45, 47)-sequence over F₃, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₃ with g(F) = 45 and N(F) ≥ 48, using
    - an explicitly constructive algebraic function field [i]

(131−81, 131, 64)-Net over F₃ — Digital

Digital (50, 131, 64)-net over F₃, using

t-expansion [i] based on digital (49, 131, 64)-net over F₃, using
- net from sequence [i] based on digital (49, 63)-sequence over F₃, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₃ with g(F) = 49 and N(F) ≥ 64, using
    - a curve from the manYPoints database [i]

(131−81, 131, 242)-Net in Base 3 — Upper bound on s

There is no (50, 131, 243)-net in base 3, because

1 times m-reduction [i] would yield (50, 130, 243)-net in base 3, but
- the generalized Rao bound for nets shows that 3^mÂ â‰¥ 108 909075 890855 796553 029501 080126 111958 856172 543437 186052 973745 > 3¹³⁰ [i]