MinT - Best Known (179−118, 179, s)-Nets in Base 3

Best Known (179−118, 179, s)-Nets in Base 3

(179−118, 179, 48)-Net over F₃ — Constructive and digital

Digital (61, 179, 48)-net over F₃, using

t-expansion [i] based on digital (45, 179, 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]

(179−118, 179, 64)-Net over F₃ — Digital

Digital (61, 179, 64)-net over F₃, using

t-expansion [i] based on digital (49, 179, 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]

(179−118, 179, 205)-Net over F₃ — Upper bound on s (digital)

There is no digital (61, 179, 206)-net over F₃, because

1 times m-reduction [i] would yield digital (61, 178, 206)-net over F₃, but
- extracting embedded orthogonal array [i] would yield linear OA(3¹⁷⁸, 206, F₃, 117) (dual of [206, 28, 118]-code), but
  - residual code [i] would yield OA(3⁶¹, 88, S₃, 39), but
    - the linear programming bound shows that MÂ â‰¥ 27794 948374 262252 134892 330586 188426 701201 134663 / 193694 611824 634375 > 3⁶¹ [i]

(179−118, 179, 265)-Net in Base 3 — Upper bound on s

There is no (61, 179, 266)-net in base 3, because

the generalized Rao bound for nets shows that 3^mÂ â‰¥ 28 729798 365052 703764 893908 168979 587541 188703 333485 853075 088042 963017 685896 309925 750401 > 3¹⁷⁹ [i]