MinT - Best Known (50, 50+40, s)-Nets in Base 16

Best Known (50, 50+40, s)-Nets in Base 16

(50, 50+40, 524)-Net over F₁₆ — Constructive and digital

Digital (50, 90, 524)-net over F₁₆, using

trace code for nets [i] based on digital (5, 45, 262)-net over F₂₅₆, using
- net from sequence [i] based on digital (5, 261)-sequence over F₂₅₆, using
  - Niederreiter sequence [i]

(50, 50+40, 646)-Net over F₁₆ — Digital

Digital (50, 90, 646)-net over F₁₆, using

embedding of OOA with Gilbertâ€“VarÅ¡amov bound [i] based on linear OOA(16⁹⁰, 646, F₁₆, 2, 40) (dual of [(646, 2), 1202, 41]-NRT-code), using
- trace code [i] based on linear OOA(256⁴⁵, 323, F₂₅₆, 2, 40) (dual of [(323, 2), 601, 41]-NRT-code), using
  - constructionÂ X applied to AG(2;F,599P) âŠ‚ AG(2;F,603P) [i] based on
    1. linear OOA(256⁴², 320, F₂₅₆, 2, 40) (dual of [(320, 2), 598, 41]-NRT-code), using algebraic-geometric NRT-code AG(2;F,599P) [i] based on function field F/F₂₅₆ with g(F) = 2 and N(F) ≥ 321, using
      - sharp bound on the number of rational points on curves with genus 2 [i]
    2. linear OOA(256³⁸, 320, F₂₅₆, 2, 36) (dual of [(320, 2), 602, 37]-NRT-code), using algebraic-geometric NRT-code AG(2;F,603P) [i] based on function field F/F₂₅₆ with g(F) = 2 and N(F) ≥ 321 (see above)
    3. linear OOA(256³, 3, F₂₅₆, 2, 3) (dual of [(3, 2), 3, 4]-NRT-code), using
      - discarding factors / shortening the dual code based on linear OOA(256³, 256, F₂₅₆, 2, 3) (dual of [(256, 2), 509, 4]-NRT-code), using
        Reedâ€“Solomon NRT-code RS(2;509,256) [i]

(50, 50+40, 145118)-Net in Base 16 — Upper bound on s

There is no (50, 90, 145119)-net in base 16, because

the generalized Rao bound for nets shows that 16^mÂ â‰¥ 2 348737 502180 283454 284443 908266 865271 073623 097622 704194 489083 993181 681795 063468 996381 823942 594166 743095 814451 > 16⁹⁰ [i]