MinT - Best Known (131−84, 131, s)-Nets in Base 4

Best Known (131−84, 131, s)-Nets in Base 4

(131−84, 131, 56)-Net over F₄ — Constructive and digital

Digital (47, 131, 56)-net over F₄, using

t-expansion [i] based on digital (33, 131, 56)-net over F₄, using
- net from sequence [i] based on digital (33, 55)-sequence over F₄, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₄ with g(F) = 33 and N(F) ≥ 56, using
    - F₅ from the tower of function fields by GarcÃa and Stichtenoth over F₄ [i]

(131−84, 131, 81)-Net over F₄ — Digital

Digital (47, 131, 81)-net over F₄, using

t-expansion [i] based on digital (46, 131, 81)-net over F₄, using
- net from sequence [i] based on digital (46, 80)-sequence over F₄, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₄ with g(F) = 46 and N(F) ≥ 81, using
    - Drinfeld modules of rank 1 [i]

(131−84, 131, 382)-Net in Base 4 — Upper bound on s

There is no (47, 131, 383)-net in base 4, because

the generalized Rao bound for nets shows that 4^mÂ â‰¥ 8 185860 563709 464627 049954 031768 355194 333164 268280 706447 376147 924054 692129 862471 > 4¹³¹ [i]