MinT - Best Known (247−147, 247, s)-Nets in Base 3

Best Known (247−147, 247, s)-Nets in Base 3

(247−147, 247, 67)-Net over F₃ — Constructive and digital

Digital (100, 247, 67)-net over F₃, using

net from sequence [i] based on digital (100, 66)-sequence over F₃, using
- base reduction for sequences [i] based on digital (17, 66)-sequence over F₉, using
  - s-reduction based on digital (17, 73)-sequence over F₉, using
    - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₉ with g(F) = 17 and N(F) ≥ 74, using
      - a function field by GarcÃa and Quoos [i]

(247−147, 247, 96)-Net over F₃ — Digital

Digital (100, 247, 96)-net over F₃, using

t-expansion [i] based on digital (89, 247, 96)-net over F₃, using
- net from sequence [i] based on digital (89, 95)-sequence over F₃, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₃ with g(F) = 89 and N(F) ≥ 96, using
    - algebraic function fields over â„¤₃ by Niederreiter/Xing [i]

(247−147, 247, 498)-Net in Base 3 — Upper bound on s

There is no (100, 247, 499)-net in base 3, because

1 times m-reduction [i] would yield (100, 246, 499)-net in base 3, but
- the generalized Rao bound for nets shows that 3^mÂ â‰¥ 2434 801913 169007 466980 112296 459332 897874 926440 126991 173755 720850 326559 105086 351286 085324 530211 820554 086302 861588 594455 > 3²⁴⁶ [i]