MinT - Best Known (66, 66+71, s)-Nets in Base 4

Best Known (66, 66+71, s)-Nets in Base 4

(66, 66+71, 66)-Net over F₄ — Constructive and digital

Digital (66, 137, 66)-net over F₄, using

t-expansion [i] based on digital (49, 137, 66)-net over F₄, using
- net from sequence [i] based on digital (49, 65)-sequence over F₄, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₄ with g(F) = 49 and N(F) ≥ 66, using
    - T₆ from the second tower of function fields by GarcÃa and Stichtenoth over F₄ [i]

(66, 66+71, 99)-Net over F₄ — Digital

Digital (66, 137, 99)-net over F₄, using

t-expansion [i] based on digital (61, 137, 99)-net over F₄, using
- net from sequence [i] based on digital (61, 98)-sequence over F₄, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₄ with g(F) = 61 and N(F) ≥ 99, using
    - Drinfeld modules of rank 1 [i]

(66, 66+71, 984)-Net in Base 4 — Upper bound on s

There is no (66, 137, 985)-net in base 4, because

1 times m-reduction [i] would yield (66, 136, 985)-net in base 4, but
- the generalized Rao bound for nets shows that 4^mÂ â‰¥ 7704 464771 412297 115513 874360 294022 413060 357818 183868 860571 312061 539207 227489 969840 > 4¹³⁶ [i]