MinT - Best Known (183−121, 183, s)-Nets in Base 3

Best Known (183−121, 183, s)-Nets in Base 3

(183−121, 183, 48)-Net over F₃ — Constructive and digital

Digital (62, 183, 48)-net over F₃, using

t-expansion [i] based on digital (45, 183, 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]

(183−121, 183, 64)-Net over F₃ — Digital

Digital (62, 183, 64)-net over F₃, using

t-expansion [i] based on digital (49, 183, 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]

(183−121, 183, 203)-Net over F₃ — Upper bound on s (digital)

There is no digital (62, 183, 204)-net over F₃, because

1 times m-reduction [i] would yield digital (62, 182, 204)-net over F₃, but
- extracting embedded orthogonal array [i] would yield linear OA(3¹⁸², 204, F₃, 120) (dual of [204, 22, 121]-code), but
  - residual code [i] would yield OA(3⁶², 83, S₃, 40), but
    - the linear programming bound shows that MÂ â‰¥ 463 942350 761962 378112 632058 617109 511207 / 1197 196966 > 3⁶² [i]

(183−121, 183, 269)-Net in Base 3 — Upper bound on s

There is no (62, 183, 270)-net in base 3, because

1 times m-reduction [i] would yield (62, 182, 270)-net in base 3, but
- the generalized Rao bound for nets shows that 3^mÂ â‰¥ 766 251085 652366 376600 580113 645449 630061 520267 651042 764946 287622 085333 838196 466283 071673 > 3¹⁸² [i]